#97 Hypno
it also has synergy in decks that care about casting spells (prowessstyle effects, whenever you cast a spell triggers, or stormadjacent strategies) since becoming prepared effectively lets you double up on its spell over time
With Kitt in play, you can tap two creatures during each players combat step to give a creature +2/+2, trample, and make it goaded until end of turn
Mind Twist Targeted discard takes a huge hit in Commander compared to Constructed formats, since it typically only interacts with one opponent and doesnt affect the board
It's around #14 or 15 on my list and not in the Top 10 proper, but the ability to force someone to discard, and destroy artifacts and critters with one number is a very precise scalpel that destroys what you need, but tends to leave your own stuff alone
If a creature has protection from a particular [quality] like white or dragons, you cannot use that something to block the creature