When this creature enters the battlefield, roll a six-sided die. You gain life equal to the result.

When this creature enters the battlefield, you may untap target permanent.

Whenever you're dealt damage,
Augment (, Reveal this card from your hand: Combine it with target host. Augment only as a sorcery.)

Whenever a nontoken creature enters the battlefield,
Augment (, Reveal this card from your hand: Combine it with target host. Augment only as a sorcery.)

First strike
Whenever Mirri, Weatherlight Duelist attacks, each opponent can't block with more than one creature this combat.
As long as Mirri, Weatherlight Duelist is tapped, no more than one creature can attack you each combat.

Whenever a nontoken creature you control dies,
Augment (, Reveal this card from your hand: Combine it with target host. Augment only as a sorcery.)

When this creature enters the battlefield, roll a six-sided die. Put a number of +1/+1 counters on this creature equal to the result.

When this creature enters the battlefield, you may exile target non-Horse creature you control that wasn't put onto the battlefield with this ability this turn, then return it to the battlefield under its owner's control.

Rare and mythic rare spells you cast cost less to cast.
, , Reveal a My Little Pony® toy you own: Until end of turn, another target creature gains protection from each color in that toy's coat, mane, and outfit.

Other Cats you control get +1/+1 and have lifelink.
When Regal Caracal enters the battlefield, create two 1/1 white Cat creature tokens with lifelink.

When this creature enters the battlefield,
exile target creature card with converted mana cost 2 or less from your graveyard. If it has augment, combine it with a host you control. Otherwise, put it onto the battlefield.

Target creature gets +2/+2 until end of turn. If it's a host or has augment, it gains lifelink until end of turn.

Knightlifelink (Damage dealt by Knights you control also causes you to gain that much life.)
: Syr Cadian, Knight Owl gains vigilance until end of turn. Activate this ability only from sunrise to sunset.
: Syr Cadian, Knight Owl gains flying until end of turn. Activate this ability only from sunset to sunrise.

Flying
When Thaumaturge's Familiar enters the battlefield, scry 1.