Whenever another creature enters the battlefield under your control, creatures you control get +1/+1 until end of turn.

: Target creature gets +4/+4 until end of turn. Activate this ability only if Greenhilt Trainee's power is 4 or greater.

Target creature gets +2/+2 until end of turn.
Landfall — If you had a land enter the battlefield under your control this turn, that creature gets +4/+4 until end of turn instead.

Intimidate (This creature can't be blocked except by artifact creatures and/or creatures that share a color with it.)
When Halo Hunter enters the battlefield, destroy target Angel.

Flying
: Harbinger of the Hunt deals 1 damage to each creature without flying.
: Harbinger of the Hunt deals 1 damage to each other creature with flying.

Whenever Highland Berserker or another Ally enters the battlefield under your control, you may have Ally creatures you control gain first strike until end of turn.

Counter target spell that targets you or a permanent you control.
Draw a card.

[+1]: Put a loyalty counter on Huatli, Radiant Champion for each creature you control.
[−1]: Target creature gets +X/+X until end of turn, where X is the number of creatures you control.
[−8]: You get an emblem with "Whenever a creature enters the battlefield under your control, you may draw a card."

Whenever this creature enters the battlefield or transforms into Huntmaster of the Fells, create a 2/2 green Wolf creature token and you gain 2 life.
At the beginning of each upkeep, if no spells were cast last turn, transform Huntmaster of the Fells.

Deathtouch
: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.)
When Hythonia the Cruel becomes monstrous, destroy all non-Gorgon creatures.

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)
Flying, trample
Whenever this creature mutates, exile cards from the top of your library until you exile a nonland permanent card. Put that card onto the battlefield or into your hand.

Put a +1/+1 counter on each creature you control.

Put a -1/-1 counter on target creature.
Draw a card.

Landfall — Whenever a land enters the battlefield under your control, you may put a quest counter on Ior Ruin Expedition.
Remove three quest counters from Ior Ruin Expedition and sacrifice it: Draw two cards.

Flying
When Isperia's Skywatch enters the battlefield, detain target creature an opponent controls. (Until your next turn, that creature can't attack or block and its activated abilities can't be activated.)

Companion — No card in your starting deck has more than one of the same mana symbol in its mana cost. (If this card is your chosen companion, you may put it into your hand from outside the game for any time you could cast a sorcery.)
: Add . This mana can't be spent to pay generic mana costs.

Flying
: Put a +1/+1 counter on Jenara, Asura of War.

Trample
Kalonian Hydra enters the battlefield with four +1/+1 counters on it.
Whenever Kalonian Hydra attacks, double the number of +1/+1 counters on each creature you control.

Each other multicolored creature you control gets +1/+1 for each of its colors.

When Knight-Captain of Eos enters the battlefield, create two 1/1 white Soldier creature tokens.
, Sacrifice a Soldier: Prevent all combat damage that would be dealt this turn.