For four mana, we expect a lot of upside, something like Gallant Cavalry that provides immediately value and an impressive 4/4 in total stats
This deck leans into this strategy, offering ways to sacrifice creatures to draw cards, card advantage and life drain for going wide, and X-spells that generate plenty of token creatures
enter Sengir Vampire
The niche play here is to attack, wait for its ability to resolve, and then phase it out so it doesnt die in combat
Opposition decks also value this guy highly as his otherwise pretty irrelevant body become useful even when you don't want to be discarding
Delney, Streetwise Lookout Delney, Streetwise Lookout starts as a disguise/morph build-around, seeing as you can attack freely with your 2/2 facedown creatures and flip them after the attack