Force of Savagery I mean, maybe youre running a deck that cares about creature deaths and are happy to summon something for just to have it die immediately
Deck Themes This is an elf deck, and as typal precons often are, it's quite consistent
Im also a big fan of Nashi, Moon Sages Scion, though that card leans harder on combat mattering, some variance, and you having some life to play with
(Then planeswalk away from this phenomenon.) Gifts of the Gods Phenomenon When you encounter Gifts of the Gods, each player gains 5 life, then shuffles their graveyard into their library
Universes Beyond Revival Trance, Counter Blitz, Limit Break, Scions & Spellcraft Commander Deck Case
Having card quality and draw on a creature is also really nice as it allows you to increase the consistency of decks which rely on high creature counts such as Opposition decks