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

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.

When Pollen Warning enters, create a 1/1 green Plant creature token, then put a +1/+1 counter on a creature you control.

Time loop
I — Create a 1/1 green Spirit creature token.
II — Put a +1/+1 counter on target creature you control.
III — Put a +1/+1 counter on each creature you control with a +1/+1 counter on it.

Reveal the top five cards of your library. You may put a colorless permanent card, a monocolored permanent card, and/or a multicolored permanent card from among them into your hand. Put the rest on the bottom of your library in any order.

Choose one —
• Destroy target creature with flying.
• Exile target enchantment.
• Target creature you control gets +1/+1 and gains hexproof until end of turn.

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

Target creature you control deals damage equal to its power to target creature you don't control. If the creature you control has trample, excess damage is dealt to that creature's controller instead.

Target creature you control gets +1/+1 until end of turn. Prevent all combat damage that other creatures would deal this turn.

Destroy target artifact or enchantment.
Cycling {2}

At the beginning of your upkeep, choose one. If you control twelve or more permanents, choose all instead.
• Create a 1/1 green Citizen creature token.
• Create a Treasure token.
• Create a Weapon token.

Mill a card. Put a +1/+1 counter on up to one target creature. Exile up to one target card from a graveyard. You gain 1 life.
Flashback {1}{G}

You gain X life, then look at the top X cards of your library, where X is the greatest mana value among permanents you control. Reveal up to two creature, enchantment, and/or land cards from among them and put them into your hand. Put the rest on the bottom in a random order.

Choose one —
• Destroy target artifact.
• Destroy target enchantment.
• Exile target card from a graveyard.

Search your library for a basic land card, reveal it, put it into your hand, then shuffle. Scry 1.

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

Destroy target artifact or enchantment. If it was a token, you draw a card and gain 2 life.

Put a +1/+1 counter on target creature you control, then double the number of +1/+1 counters on it.

Whenever this Subroutine runs, search your library for a basic land card, put it onto the battlefield, then shuffle.

Double target creature's power and toughness until end of turn.
Flashback {1}{G}

Until end of turn, target creature you control gets +1/+1 for each different creature type among non-Coward creatures you control. All creatures able to block it this turn do so.

Put a +1/+1 counter on target creature. It gains trample until end of turn.

Enchant creature you control
When Shatter the Reflection enters, you may destroy target artifact or enchantment.
Enchanted creature gets +1/+0 and has deathtouch.

Draw cards equal to the greatest power among creatures you control. At the beginning of the next end step, discard that many cards.