Abominable Avalanche deals 3 damage divided as you choose among one, two, or three targets.
At the beginning of your end step, if you've spent at least five mana to cast spells this turn, you may exile Abominable Avalanche from your graveyard. If you do, create a 3/3 green Yeti creature token with trample.

Put a +1/+1 counter on up to one target creature you control. Prevent all damage that would be dealt this turn except by creatures target player controls with counters on them.

Absolver of Ashes enters with a trample, first strike, menace, and +1/+1 counter on it.
At the beginning of your upkeep, remove a counter from Absolver of Ashes. If you can't, sacrifice it.

When Adaptive Hydra enters, teach it your choice of haste, menace, or vigilance. Then repeat this process X times.

Flying, deathtouch

Whenever a player attacks with two or more creatures, create a Treasure token.
Whenever a player casts their second spell each turn, create a 1/1 colorless Cyborg artifact creature token.
Cybersoul {7}{W}{B}

Menace
Whenever you cast an instant or sorcery spell with mana value 4 or greater, put a +1/+1 counter on Alehana's Fleshsearer.

Look at the top three cards of your library. Put one into your hand and the rest into your graveyard.
Flashback—{B}, Discard a card.

Enchant creature
Enchanted creature gets +2/+0 and has “Attacking creatures you control get +1/+0.”
Wander {2}{R}

Flying
Whenever you cast a spell that targets Alrantan Eagle-Eye, create a 1/1 white Human creature token. If Alrantan Eagle-Eye is attacking, that token enters tapped and attacking.
At the beginning of your end step, draw a card if you control three or more tapped creatures.

When Alrantan Visionary enters, reveal the top three cards of your library. Put a noncreature permanent card from among them into your hand and the rest into your graveyard.
{T}: Add one mana of any color.
Wander {4}{G}{G}

Favored
Whenever your Champion attacks, tap target creature.

Flying
Whenever you amp it up, Android Stunner deals 1 damage to any target. If a permanent was dealt damage this way, tap it and put a stun counter on it.

Flying
When Anvilwrought Crane dies, create a Weapon token.

Enchant creature
Enchanted creature gets +3/+3 and has reach.

Flying, vigilance, lifelink

Menace
When Ardent Voter enters, make a pledge.

Trample
Whenever Arena Champion attacks, create a Weapon token, then attach it to an attacking creature you control.

Target creature gets -3/-3 until end of turn. When that creature dies this turn, create a 1/1 colorless Cyborg artifact creature token.

When Ascend to Power enters, you may sacrifice a creature, discard a card, or pay 3 life. If you do, draw two cards.
You've sacrificed a nonland permanent this turn.
You've discarded a card this turn.
You've lost life this turn.

When Askir's Rearguard enters, if a creature you control dealt combat damage to a player this turn, draw a card.
Wander {1}{U}

Choose any number —
• Each player sacrifices an enchantment.
• Each player sacrifices an artifact.
• Each player sacrifices a creature.

Indestructible
As long as your devotion to white and black is less than seven, Athreos isn't a creature.
Whenever a creature dies, exile it with a coin counter on it. Each opponent loses 1 life and you gain 1 life.
Whenever Athreos attacks, put a creature card you exiled with a coin counter on it onto the battlefield under your control.

When Audacious Roughrider enters or leaves the battlefield, exile the top card of your library. Then you may discard a card. If you do, put the exiled card into your hand. If you don't, create a Treasure token.
Wander {4}{R}{R}

Flying
Favored
Whenever your Champion attacks, you may double its power until end of turn. If you do, sacrifice it at the beginning of the next end step.