Trample
When this creature enters, double the number of +1/+1 counters on another target creature you control. Then for each counter on that creature, you may put a counter of that kind on this creature.

Vigilance
Plainscycling {2}

Whenever Nyxborn Retriever attacks, if defending player has eight or more cards in their graveyard, Nyxborn Retriever gets +2/+1 and gains menace until end of turn.

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.

Vigilance
Whenever you attack, bless target creature.

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.

Put a +1/+1 counter on each creature you control. They get +1/+1 and gain trample until end of turn.
Cycling {2}

When Parental Pair enters, create a token that's a copy of it, except it's 2/2 and doesn't have this ability.
Amity — Whenever you attack with Parental Pair and exactly one other creature, you may have Parental Pair fight target creature.

This spell can't be countered.
Destroy all permanents without activated abilities.

At the beginning of combat on your turn, if you've spent at least five mana to cast spells this turn, Peaktop Predator deals 2 damage to target player or planeswalker.

When Penrath Ambassador enters, target creature must be blocked each combat this turn if able and target creature can't block this turn.
Basic landcycling {1}{G}

Haste
Whenever Penrath Firearm attacks, create a colorless Equipment artifact token with “Equipped creature gets +2/+0” and equip {2} attached to target attacking creature.

Vigilance
Whenever Pheres-Band Huntmaster becomes the target of a spell or ability you control, put a +1/+1 counter on it. You gain 2 life.

Whenever one or more cards leave your graveyard, put a +1/+1 counter on Phyto, Caverns Scourge, then each opponent loses life equal to half its power, rounded up. This ability triggers only once each turn.
{X}{X}{B}{G}, Exile Phyto, Caverns Scourge from your graveyard: Return X other target permanent cards from your graveyard to your hand.

Flying, haste
When Plasmana Hellkite enters, it deals 2 damage to any target and 1 damage to any other target.

Deathtouch
Whenever Qion enters or attacks, you may reveal the top two cards of your library. If you do, you gain life equal to their total mana value, put them into your hand, then lose 7 life.

Exchange control of target spell or creature you control and target spell or creature an opponent controls. Controllers of spells exchanged this way may choose new targets for them.

Whenever this Subroutine runs, creatures you control get +3/+3 and gain trample until end of turn.

Surveil 2. When you do, return up to one target creature card from your graveyard to the battlefield.

Reduce to Ore deals 5 damage to target creature. If a Ruin dealt damage this way would die this turn, instead exile it and you create two Treasure tokens.

Whenever this creature attacks or blocks, it gets +X/+X until end of turn, where X is the greatest mana value among other permanents you control.

Target opponent discards their hand, then draws seven cards. You discard your hand, then exile the top seven cards of that player's library. You may play those cards as long as they remain exiled, and mana of any type can be spent to cast them.

Time loop
I, II — Look at the top six cards of your library. Put up to one nonland permanent card with mana value 3 or less from among them onto the battlefield. Put the rest on the bottom of your library in a random order.
III — Creatures you control gain double strike until end of turn.

Put two +1/+1 counters on target creature you control. It fights up to one target creature an opponent controls. You gain 4 life.

Reach
When Roaming Treefolk enters, target creature or Ruin gets +2/+2 until end of turn.
Wander {5}{G}