Whenever a nontoken creature you control enters, if it wasn't cast from your hand, put a +1/+1 counter on that creature.
Wander {2}{W}

Flying, haste
As an additional cost to cast spells with flashback, you may pay {1}{R}. When you do, return Opal-Eye Phoenix from your graveyard to the battlefield.

Whenever you spend at least five mana to cast a spell, untap Opal-Eye Runeweaver.
{T}: Untap another target permanent not named Opal-Eye Runeweaver. Activate only as a sorcery.

Open Air Boardwalk enters tapped.
{T}: Add {G} or {W}.
{4}: Make a pledge. Activate only as a sorcery.

Whenever you cast an instant or sorcery spell, untap Orbinoid.
{T}: Add one mana of any type.

Enchant creature
Whenever enchanted creature attacks, put a +1/+1 counter on it. Then if it has three or more +1/+1 counters on it, sacrifice Ordeal of Athreos.
When you sacrifice Ordeal of Athreos, return target creature card from your graveyard to the battlefield.

Enchant creature
Whenever enchanted creature attacks, put a +1/+1 counter on it. Then if it has three or more +1/+1 counters on it, sacrifice Ordeal of Ephara.
When you sacrifice Ordeal of Ephara, return up to two target nonland permanents to their owner's hand.

Enchant creature
Whenever enchanted creature attacks, put a +1/+1 counter on it. Then if it has three or more +1/+1 counters on it, sacrifice Ordeal of Karametra.
Whenever you sacrifice Ordeal of Karametra, put a +1/+1 counter on each creature you control. Untap them.

Enchant creature
Whenever enchanted creature attacks, put a +1/+1 counter on it. Then if it has three or more +1/+1 counters on it, sacrifice Ordeal of Karda.
Whenever you sacrifice Ordeal of Karda, creatures you control get +2/+0 until end of turn.

Enchant creature
Whenever enchanted creature attacks, put a +1/+1 counter on it. Then if it has three or more +1/+1 counters on it, sacrifice Ordeal of Pharika.
Whenever you sacrifice Ordeal of Pharika, creatures your opponents control get -2/-2 until end of turn.

Creatures you control have menace as long as they are attacking players with eight or more cards in their graveyard.
Whenever you attack, each defending player mills two cards. If a land card was milled this way, put a +1/+1 counter on Orestes.

Until end of turn, target creature you control gets +2/+2 and gains “Whenever this creature is dealt damage, you may have it fight target creature you don't control.” Then, it fights target creature you don't control.

Target creature you control gains hexproof until end of turn. When a nonmana ability of that creature is next activated or triggered this turn, copy it. You may choose new targets for the copy.

Exile target creature or planeswalker. Its controller loses 2 life.

Outlands Prowler has first strike as long as it's your turn.
Landfall — Whenever a land you control enters, Outlands Prowler gets +2/+2 until end of turn.

Counter target spell. That spell's controller reveals their hand. Choose any number of nonland cards from it. That player puts those cards on the bottom of their library in any order, then draws that many cards.

When Overbearing Researcher enters, put a +1/+1 counter on target creature.
Each creature you control has ward {X}, where X is the number of counters on that creature.

This spell costs {2} less to cast if it targets a creature you control with power 4 or greater.
Target creature you control deals damage equal to its power to target creature you don't control.

Exile target creature. Tap up to two other target creatures if the exiled creature had power 3 or less.

Search your library for a creature card with mana value 2 or less, put it onto the battlefield tapped, then shuffle.

Create a 3/1 red Dinosaur creature token. When you do, pay for and choose any number.
+{G} — Put a trample counter on target creature you control.
+{U} — Put a +1/+1 counter on target creature you control.
+{R} — Put a haste counter on target creature you control.

Trample
Solidarity
{G}, Sacrifice an enchantment: Ozanwood Huntsman gets +2/+2 until end of turn.

When Ozanwood Murk dies, draw a card.

Lifelink
Whenever you gain life, noncreature spells your opponents cast cost {1} more to cast until your next turn. This ability triggers only once each turn.

Ozzen Headquarters enters tapped.
{T}: Add {W} or {B}.
{T}, Discard another card named Ozzen Headquarters: Draw a card.