Target creature you control gets +2/+2 until end of turn if its power is 2. Then it fights target creature you don't control. (Each deals damage equal to its power to the other.)
Whenever a creature you control enters, you gain 1 life. If Answered Prayers isn't a creature, it becomes a 3/3 Angel creature with flying in addition to its other types until end of turn.
Enchant creatureWhen Winter's Rest enters, tap enchanted creature.As long as you control another snow permanent, enchanted creature doesn't untap during its controller's untap step.
FlashFlyingWhen Blizzard Strix enters, if you control another snow permanent, exile target permanent other than Blizzard Strix. Return that card to the battlefield under its owner's control at the beginning of the next end step.
Vanishing 3 (This creature enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)When Deep Forest Hermit enters, create four 1/1 green Squirrel creature tokens.Squirrels you control get +1/+1.
Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner's control with a -1/-1 counter on it.)
Reveal the top five cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other into your graveyard.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)When Martyr's Soul enters, if you control no tapped lands, put two +1/+1 counters on it.
Shroud (This creature can't be the target of spells or abilities.)Threshold — Nimble Mongoose gets +2/+2 as long as seven or more cards are in your graveyard.
Changeling (This card is every creature type.)ReachWhen Webweaver Changeling enters, if there are three or more creature cards in your graveyard, you gain 5 life.
MenaceEvolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)