diff --git a/core/chains/evm/client/errors.go b/core/chains/evm/client/errors.go
index 57cd2b0a3e..7a21a3841c 100644
--- a/core/chains/evm/client/errors.go
+++ b/core/chains/evm/client/errors.go
@@ -268,10 +268,6 @@ var mantle = ClientErrors{
 	NonceTooLow:     regexp.MustCompile(`(: |^)'*nonce too low`),
 }
 
-var berachain = ClientErrors{	
-	Fatal:           regexp.MustCompile(`(: |^)'*invalid chain ID`),	
-}
-
 var hederaFatal = regexp.MustCompile(`(: |^)(execution reverted)(:|$) | ^Transaction gas limit '(\d+)' exceeds block gas limit '(\d+)' | ^Transaction gas limit provided '(\d+)' is insufficient of intrinsic gas required '(\d+)' | ^Oversized data:|status INVALID_SIGNATURE`)
 var hedera = ClientErrors{
 	NonceTooLow:           regexp.MustCompile(`Nonce too low`),
@@ -293,7 +289,7 @@ var internal = ClientErrors{
 	TerminallyStuck: regexp.MustCompile(TerminallyStuckMsg),
 }
 
-var clients = []ClientErrors{parity, geth, arbitrum, metis, substrate, avalanche, nethermind, harmony, besu, erigon, klaytn, celo, zkSync, zkEvm, treasure, mantle, berachain, aStar, hedera, gnosis, internal}
+var clients = []ClientErrors{parity, geth, arbitrum, metis, substrate, avalanche, nethermind, harmony, besu, erigon, klaytn, celo, zkSync, zkEvm, treasure, mantle, aStar, hedera, gnosis, internal}
 
 // ClientErrorRegexes returns a map of compiled regexes for each error type
 func ClientErrorRegexes(errsRegex config.ClientErrors) *ClientErrors {
diff --git a/core/chains/evm/client/errors_test.go b/core/chains/evm/client/errors_test.go
index 93249a0e22..e6d2f2d08b 100644
--- a/core/chains/evm/client/errors_test.go
+++ b/core/chains/evm/client/errors_test.go
@@ -415,8 +415,6 @@ func Test_Eth_Errors_Fatal(t *testing.T) {
 
 		{"failed to forward tx to sequencer, please try again. Error message: 'invalid sender'", true, "Mantle"},
 
-		{"invalid chain ID", true, "Berachain"},
-
 		{"client error fatal", true, "tomlConfig"},
 		{"[Request ID: d9711488-4c1e-4af2-bc1f-7969913d7b60] Error invoking RPC: transaction 0.0.4425573@1718213476.914320044 failed precheck with status INVALID_SIGNATURE", true, "hedera"},
 		{"invalid chain id for signer", true, "Treasure"},
diff --git a/core/chains/evm/config/toml/defaults/BOB_Mainnet.toml b/core/chains/evm/config/toml/defaults/BOB_Mainnet.toml
index 9940d0f6c9..c5f4ab4449 100644
--- a/core/chains/evm/config/toml/defaults/BOB_Mainnet.toml
+++ b/core/chains/evm/config/toml/defaults/BOB_Mainnet.toml
@@ -4,7 +4,7 @@ ChainType = 'optimismBedrock'
 # finality_depth was: ~850
 FinalityDepth = 900
 # block_time was:  2s
-LogPollInterval = '5s'  
+LogPollInterval = '5s'
 
 # finality_depth * block_time / 60 secs = ~30  min (finality time)
 NoNewFinalizedHeadsThreshold = '35m'
@@ -21,3 +21,7 @@ CacheTimeout = '2s'
 
 [GasEstimator.BlockHistory]
 BlockHistorySize = 100
+
+[GasEstimator.DAOracle]
+OracleType = 'opstack'
+OracleAddress = '0x420000000000000000000000000000000000000F'
diff --git a/core/chains/evm/config/toml/defaults/BOB_Testnet.toml b/core/chains/evm/config/toml/defaults/BOB_Testnet.toml
index 35c4c99837..8edd880502 100644
--- a/core/chains/evm/config/toml/defaults/BOB_Testnet.toml
+++ b/core/chains/evm/config/toml/defaults/BOB_Testnet.toml
@@ -21,3 +21,7 @@ CacheTimeout = '2s'
 
 [GasEstimator.BlockHistory]
 BlockHistorySize = 100
+
+[GasEstimator.DAOracle]
+OracleType = 'opstack'
+OracleAddress = '0x420000000000000000000000000000000000000F'
diff --git a/core/chains/evm/config/toml/defaults/Berachain_Testnet.toml b/core/chains/evm/config/toml/defaults/Berachain_Testnet.toml
index d86cf99bb3..5f37e8e503 100644
--- a/core/chains/evm/config/toml/defaults/Berachain_Testnet.toml
+++ b/core/chains/evm/config/toml/defaults/Berachain_Testnet.toml
@@ -4,6 +4,10 @@ FinalityDepth = 10
 # block_time: 5s 
 LogPollInterval = '10s' 
 
+# finality_depth * block_time / 60 secs = ~0.8  min (finality time)
+NoNewFinalizedHeadsThreshold = '5m'
+
+
 FinalityTagEnabled = true
 
 [GasEstimator]
diff --git a/core/chains/evm/config/toml/defaults/Bsquared_Mainnet.toml b/core/chains/evm/config/toml/defaults/Bsquared_Mainnet.toml
index b70a569d27..32965f3b15 100644
--- a/core/chains/evm/config/toml/defaults/Bsquared_Mainnet.toml
+++ b/core/chains/evm/config/toml/defaults/Bsquared_Mainnet.toml
@@ -20,4 +20,8 @@ Mode = 'FeeHistory'
 CacheTimeout = '2s'
 
 [GasEstimator.BlockHistory]
-BlockHistorySize = 100
\ No newline at end of file
+BlockHistorySize = 100
+
+[GasEstimator.DAOracle]
+OracleType = 'opstack'
+OracleAddress = '0x420000000000000000000000000000000000000F'
\ No newline at end of file
diff --git a/core/chains/evm/config/toml/defaults/Bsquared_Testnet.toml b/core/chains/evm/config/toml/defaults/Bsquared_Testnet.toml
index 6a00ac9467..24aa934bb0 100644
--- a/core/chains/evm/config/toml/defaults/Bsquared_Testnet.toml
+++ b/core/chains/evm/config/toml/defaults/Bsquared_Testnet.toml
@@ -4,12 +4,12 @@ ChainType = 'optimismBedrock'
 # finality_depth was: ~1900
 FinalityDepth = 2000
 # block_time:  ~2s 
-LogPollInterval = '5s' 
+LogPollInterval = '5s'
 
 # finality_depth * block_time / 60 secs = ~66  min (finality time)
-NoNewFinalizedHeadsThreshold = '70m' 
+NoNewFinalizedHeadsThreshold = '70m'
 
-FinalityTagEnabled = true 
+FinalityTagEnabled = true
 
 [GasEstimator]
 EIP1559DynamicFees = true
@@ -20,4 +20,8 @@ Mode = 'FeeHistory'
 CacheTimeout = '2s'
 
 [GasEstimator.BlockHistory]
-BlockHistorySize = 100
\ No newline at end of file
+BlockHistorySize = 100
+
+[GasEstimator.DAOracle]
+OracleType = 'opstack'
+OracleAddress = '0x420000000000000000000000000000000000000F'
diff --git a/core/chains/evm/config/toml/defaults/Unichain_Testnet.toml b/core/chains/evm/config/toml/defaults/Unichain_Testnet.toml
index 798b1ef23d..a1d7602bc3 100644
--- a/core/chains/evm/config/toml/defaults/Unichain_Testnet.toml
+++ b/core/chains/evm/config/toml/defaults/Unichain_Testnet.toml
@@ -4,10 +4,11 @@ ChainType = 'optimismBedrock'
 # finality_depth was: ~1900
 FinalityDepth = 2000
 # block_time was:  ~1s 
-LogPollInterval = '5s' 
+LogPollInterval = '5s'
 
-# finality_depth * block_time / 60 secs = ~33  min (finality time)
-NoNewFinalizedHeadsThreshold = '35m'
+# batching_size_finalization_percentage = 30% according to the explorer batching view
+# ( batching_size_finalization_percentage * finality_depth) * block_time / 60 secs = ~33  min (finality time)
+NoNewFinalizedHeadsThreshold = '10m'
 
 FinalityTagEnabled = true
 
@@ -20,4 +21,8 @@ Mode = 'FeeHistory'
 CacheTimeout = '1s'
 
 [GasEstimator.BlockHistory]
-BlockHistorySize = 100
\ No newline at end of file
+BlockHistorySize = 100
+
+[GasEstimator.DAOracle]
+OracleType = 'opstack'
+OracleAddress = '0x420000000000000000000000000000000000000F'
diff --git a/core/chains/evm/config/toml/defaults/Worldchain_Mainnet.toml b/core/chains/evm/config/toml/defaults/Worldchain_Mainnet.toml
index e8dbc5d5fc..9170eab4ec 100644
--- a/core/chains/evm/config/toml/defaults/Worldchain_Mainnet.toml
+++ b/core/chains/evm/config/toml/defaults/Worldchain_Mainnet.toml
@@ -2,14 +2,14 @@ ChainID = '480'
 # OP stack: https://worldcoin.notion.site/World-Chain-Developer-Preview-Guide-23c94a67683f4e71986e5303ab88c9f3
 ChainType = 'optimismBedrock'
 # finality_depth was: ~2400
-FinalityDepth = 2500 
+FinalityDepth = 2500
 # block_time was:  2s 
-LogPollInterval = '5s' 
+LogPollInterval = '5s'
 
 # finality_depth * block_time / 60 secs = ~83  min (finality time)
 NoNewFinalizedHeadsThreshold = '90m'
 
-FinalityTagEnabled = true 
+FinalityTagEnabled = true
 
 [GasEstimator]
 EIP1559DynamicFees = true
@@ -20,4 +20,8 @@ Mode = 'FeeHistory'
 CacheTimeout = '2s'
 
 [GasEstimator.BlockHistory]
-BlockHistorySize = 100
\ No newline at end of file
+BlockHistorySize = 100
+
+[GasEstimator.DAOracle]
+OracleType = 'opstack'
+OracleAddress = '0x420000000000000000000000000000000000000F'
diff --git a/core/chains/evm/config/toml/defaults/Worldchain_Testnet.toml b/core/chains/evm/config/toml/defaults/Worldchain_Testnet.toml
index 4bceb5fe8c..f125022a6c 100644
--- a/core/chains/evm/config/toml/defaults/Worldchain_Testnet.toml
+++ b/core/chains/evm/config/toml/defaults/Worldchain_Testnet.toml
@@ -2,14 +2,14 @@ ChainID = '4801'
 # OP stack: https://worldcoin.notion.site/World-Chain-Developer-Preview-Guide-23c94a67683f4e71986e5303ab88c9f3
 ChainType = 'optimismBedrock'
 # finality_depth was: ~2400
-FinalityDepth = 2500 
+FinalityDepth = 2500
 # block_time was:  2s 
-LogPollInterval = '5s' 
+LogPollInterval = '5s'
 
 # finality_depth * block_time / 60 secs = ~83  min (finality time)
 NoNewFinalizedHeadsThreshold = '90m'
 
-FinalityTagEnabled = true 
+FinalityTagEnabled = true
 
 [GasEstimator]
 EIP1559DynamicFees = true
@@ -20,4 +20,8 @@ Mode = 'FeeHistory'
 CacheTimeout = '2s'
 
 [GasEstimator.BlockHistory]
-BlockHistorySize = 100
\ No newline at end of file
+BlockHistorySize = 100
+
+[GasEstimator.DAOracle]
+OracleType = 'opstack'
+OracleAddress = '0x420000000000000000000000000000000000000F'