Reach
If a creature you control would deal combat damage to a permanent or player, you may have it deal damage equal to your devotion to green instead.

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.

Archaic Obelisk enters with a charge counter on it.
{T}: Mill two cards, then you may remove a charge counter from Archaic Obelisk. If you do, return a card milled this way to your hand.

Menace
Spellcharge 3
You may cast Archaic Straggler from your graveyard if you've spent at least three mana to cast spells this turn.

When this creature enters, mill three cards, then you may exile an instant, sorcery, or Subroutine card from your graveyard. You may cast a copy of that card. If you don't, cache it.

Cards in graveyards lose all abilities.
{1}: Put target card from a graveyard on the bottom of its owner's library. Activate only as a sorcery.
Cycling {2}

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

This land enters tapped.
Level up {U}{U}{U}
[level 1-2] Vigilance
This land is also a creature.
[level 3+] Vigilance
This land is also a creature.

Flying
When Archon of Condemnation enters, you may bless target creature.
At the beginning of your upkeep, you may sacrifice a creature. If you do, bless target creature.

Flying, vigilance, lifelink

Flying
Favored
Whenever your Champion attacks, create a 0/0 white Army creature token, then put a +1/+1 counter on each Army you control.

When this land enters, sacrifice it. If you do, search your library for a basic Mountain or Forest card, put it onto the battlefield tapped, then shuffle.
{1}{R}{R}{G}{G}, Discard this card: Target creature you control gets +2/+0 until end of turn. It deals damage equal to its power to up to one target creature you don't control.

Menace
When Ardent Voter enters, make a pledge.

Menace
Creature tokens you control get +1/+1, have haste, and must attack each combat if able.
At the beginning of combat on your turn, create a 1/1 red Soldier creature token.

When Arduous Miners enters, you may have all players discard a card.
Whenever one or more cards leave your graveyard, create a tapped Treasure token.

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

Haste
Arid Outrider gets +1/+0 as long as you control a token.

At the beginning of your upkeep, exile the top card of your library.
You may play cards exiled with Aristocracy as long as you've sacrificed a nonland permanent this turn.

Flying
When Armored Raptor enters, if you control an artifact, draw a card.

Army Reserves enters with X +1/+1 counters and a defender counter on it.
{1}: Move a counter from Army Reserves onto another target creature. Activate only as a sorcery.

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

Flying
Whenever Arsenal Mentor attacks, teach target attacking creature with lesser power flying.

Level up {G/U}
[level 3-5] Whenever this creature deals damage to a player, draw a card.
[level 6+] Whenever a creature you control deals damage to a player, draw a card.

Spells you cast from anywhere other than your hand can't be countered.
{1}{G/U}, {T}: Put a +1/+1 counter on target creature that doesn't have a +1/+1 counter on it. Activate only as a sorcery.