Keyword: Transform

At the beginning of your upkeep, if you control four or more creatures, transform Hanweir Militia Captain.

Haste
At the beginning of each upkeep, if no spells were cast last turn, transform Geier Reach Bandit.

Flash
Flying, vigilance
When Archangel Avacyn enters the battlefield, creatures you control gain indestructible until end of turn.
When a non-Angel creature you control dies, transform Archangel Avacyn at the beginning of the next upkeep.

: Add .
, , Pay 1 life: Create a 1/1 white and black Human Cleric creature token.
, , Sacrifice five creatures: Transform Westvale Abbey, then untap it.

At the beginning of each upkeep, if no spells were cast last turn, transform Gatstaf Arsonists.

At the beginning of each upkeep, if no spells were cast last turn, transform Breakneck Rider.

+1: Until end of turn, up to one target creature gets +2/+2 and gains vigilance and haste.
0: Create a 2/2 green Wolf creature token. Transform Arlinn Kord.

At the beginning of each upkeep, if no spells were cast last turn, transform Solitary Hunter.

Haste
At the beginning of each upkeep, if no spells were cast last turn, transform Village Messenger.

Haste
At the beginning of each upkeep, if no spells were cast last turn, transform Geier Reach Bandit.

Whenever Kessig Forgemaster blocks or becomes blocked by a creature, Kessig Forgemaster deals 1 damage to that creature.
At the beginning of each upkeep, if no spells were cast last turn, transform Kessig Forgemaster.

, Discard a card: Transform Elusive Tormentor.

At the beginning of each upkeep, if no spells were cast last turn, transform Convicted Killer.

Whenever an opponent casts a spell during your turn, draw a card.
At the beginning of each upkeep, if no spells were cast last turn, transform Hermit of the Natterknolls.

: Look at the top three cards of your library. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in any order.
At the beginning of each upkeep, if no spells were cast last turn, transform Duskwatch Recruiter.

Delirium — : Transform Kindly Stranger. Activate this ability only if there are four or more card types among cards in your graveyard.

Defender
Thing in the Ice enters the battlefield with four ice counters on it.
Whenever you cast an instant or sorcery spell, remove an ice counter from Thing in the Ice. Then if it has no ice counters on it, transform it.

Enchant creature
Enchanted creature can’t attack, block, or transform.
Sacrifice another permanent: Attach Bound by Moonsilver to target creature. Activate this ability only any time you could cast a sorcery and only once each turn.

Lambholt Pacifist can’t attack unless you control a creature with power 4 or greater.
At the beginning of each upkeep, if no spells were cast last turn, transform Lambholt Pacifist.

Flash
Flying, vigilance
When Archangel Avacyn enters the battlefield, creatures you control gain indestructible until end of turn.
When a non-Angel creature you control dies, transform Archangel Avacyn at the beginning of the next upkeep.

Sage of Ancient Lore’s power and toughness are each equal to the number of cards in your hand.
When Sage of Ancient Lore enters the battlefield, draw a card.
At the beginning of each upkeep, if no spells were cast last turn, transform Sage of Ancient Lore.

At the beginning of each upkeep, if no spells were cast last turn, transform Hinterland Hermit.