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

When this creature enters, create a Treasure token.
Whenever you sacrifice an artifact or enchantment, this creature gets +2/+0 and gains trample until end of turn.

Sacrifice Archaeovolcanologist: Choose an instant, sorcery, or land card in your graveyard. You may play that card this turn.

Level up {2}{U}
[level 1-2]
[level 3+] Flying

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.

Reach
At the beginning of your upkeep, create a Berry token. You may attach it to Aroma Spinner.

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}

When this creature enters, reveal cards from the top of your library until you reveal a land card. Put that card into your hand and the rest into your graveyard.

Create a token that's a copy of target creature you control, except it has base power and toughness X/X, where X is the number of Islands you control plus the number of cards with a cycling ability in your graveyard.
Islandcycling {2}

This spell costs {1} less to cast if there is a card named Avert Disaster or Imminent Disaster in your graveyard.
Counter target spell.

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.

Choose one or more —
• Exile each artifact with mana value X or less.
• Exile each creature with mana value X or less.
• Exile each enchantment with mana value X or less.

Whenever one or more cards are put into exile from graveyards and/or the battlefield during your turn, create a 1/1 blue Bird creature token with flying.

When this Subroutine enters, you create two 1/1 black Jellyfish enchantment creature tokens with flying, draw two cards, and gain 2 life.
Whenever this Subroutine leaves the battlefield or runs, you sacrifice a creature, discard a card, and lose 1 life.

Corrupt — When this Subroutine enters, if you control a permanent with greater mana value, it runs.
Whenever this Subroutine runs, create two 1/1 white Citizen creature tokens. They gain haste until end of turn.

When Barbarous Roughrider enters or leaves the battlefield, each opponent loses 2 life unless they sacrifice a nontoken creature.
Wander {4}{B}{B}

Flash
At the beginning of your end step, if you've cast no spells this turn, you may draw a card, then discard a card.

Lifelink, ward {1}
Whenever Basilo, Lion of Valor attacks, you may bless target nonenchanted creature.