FINAL FANTASY: GREEN Ancient Adamantoise soaks up damage, and then refunds you with a burst of mana when it eventually dies
With 20 cards in each pack, two Jumpstart Boosters are enough to create a Limited format-legal deck
Tergrid's Shadow Each player sacs two creatures is potentially a huge effect, and 2 and 4 means it can come out relatively quickly, essentially generally resetting the board and will frequently clear out commanders since players will often have 1 utility creature to protect vs a single sacrifice effect, but not two, though your mileage may vary depending on your meta
It has an incredible impact as soon as it enters, generating card advantage by drawing a card while making your opponent discard and stopping them from developing a board if you cheat it out fast enough
Well now we need something that is in at least the Orzhov color identity
What makes Bloodbraid Challenger just a little bit extra is its escape keyword