Simian Spirit Guide

Elvish Spirit Guide

Exile this creature from your hand: Add {G}.

Spirit of Resilience

Whenever one or more cards leave your graveyard, put a +1/+1 counter on this creature, then you may have this creature become a copy of an artifact or creature card from among those cards until end of turn.

Ignoble Hierarch

Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)
{T}: Add {B}, {R}, or {G}.

Wood Elves

When this creature enters, search your library for a Forest card, put that card onto the battlefield, then shuffle.

Cosmogoyf

Cosmogoyf's power is equal to the number of cards you own in exile and its toughness is equal to that number plus 1.

Gyrus, Waker of Corpses

Gyrus enters with a number of +1/+1 counters on it equal to the amount of mana spent to cast it.
Whenever Gyrus attacks, you may exile target creature card with lesser power from your graveyard. If you do, create a token that's a copy of that card and that's tapped and attacking. Exile the token at end of combat.

Riftsweeper

When this creature enters, choose target face-up exiled card. Its owner shuffles it into their library.

Buried Alive

Search your library for up to three creature cards, put them into your graveyard, then shuffle.