I’d echo Konijntje post pretty much word for word.
To get max dmg on titan you want to make sure you have:
185% Multiplier: Wu Kong
-34% Defence Debuffer: Tiburtus, Gormek, Grimm
+% Attack: Kiril (30%), BoldTusk (48%), Lancelot (limited 48%)
And then 2-3 of the strong element colour. When one of your above 3 are covered by the strong element, you can go 3 - 1- 1, when it is not I go 2 -1 -1 -1
Then you have Bonus element debuffers like Jackal, Panther, Falkon, King Arthur that take things to another level when the diamonds align.
Like Konijntje I do not have Grimm yet, so my standard team includes BoldTusk, Wu Kong, and Tiburtus.