Having trample on a power 2 or 3 really doesn't do anything, and in most games even 4 isn't enough
Do you intentionally want to try to miss to get more cards stored and get a bigger payout or try for immediate value and gain those 2 cards
[W][W][C][C] Splash Bang: 130 damage
If we can keep Teferi off the board, Didn't Say Please and Thought Collapse allow us to play a weird control-mill game, where we try to stick a copy or two of Drowned Secrets, always leave up a counterspell for whatever threat our opponent might have (while hopefully using the rest of our mana to cast cheap mill cards during our turn), and slowly mill away our opponent's library as we counter their threats
That's a pretty big reward, and while twelve mana is usually a tall order, black has access to Cabal CoffersCabal Coffers, Crypt GhastCrypt Ghast, Nirkana RevenantNirkana Revenant, which will all ensure you get your maximum value
Kogla and Yidaro Modal ETBs are always fun, especially when all the modes let you impact the board in some way