You can pay X mana to place a creature from your hand facedown on the battlefield as a 2/2 creature, similar to how the morph mechanic works
So, when I saw ads offering me a pack of Prismatic Evolutions (a highly sought-after special set you generally can't get for love nor money) for just $1.60 (1.12), and one of the newest Pokmon sets, White Flare, at under $5 for five packs, I already knew what I was signing up for
As always, I lean on Duress and Arguels Blood Fast against control
You can also work your way around giving Yshtola Curiosity, so it hits for 2, you draw a card, cast the card youve drawn, and continue draining your opponents out with more triggers
It's also multicolored while not on the stack
Korvolds triggered abilities play so well with each other and synergize with just about any sacrifice ability you could wish for