Yshtola, Nights Blessed Legendary Creature Cat Warlock Vigilance At the beginning of each end step, if a player lost 4 or more life this turn, you draw a card
This thing loves blink and midrange that loads down decks with ETB stuff as well the needed triggers of dying things in Aristocrats and Sacrifice-matters, Artifact decks, even a Solemn Simulacrum that most run is quite doable
//// Truga Cliffcharger Creature Rhino 3/4 Trample When Truga Cliffcharger enters the battlefield, you may discard a card
Its been impactful in many formats, to the point that playing 20 more cards in your deck just to get the companion mechanic going seems like a good idea (sorry Commander players, you cant have a 120 card-deck)
After all, theyre not a dinosaur, so dont be fooled by their fancy hat