Whenever a creature you control enters, teach it flying if a creature you control has flying. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, reach, trample, and vigilance.

At the beginning of combat on your turn, you may put a +1/+1 counter on another target creature you control.
{R}{G}: Gereishin's Presence becomes a 3/2 Dragon creature with flying in addition to its other types.

[+1]: Up to one target creature gets +2/+0 and gains haste until end of turn.
[–1]: Add {R}. If Gericho, Ageless Wanderer entered this turn, add {R}{R} instead.
[0]: Exile Gericho and the top X cards of your library, where X is the number of loyalty counters on him. You may play cards exiled this way until the end of your next turn.

Search your library for a noncreature, nonland card not named Get Your Wish, reveal it, put it into your hand, then shuffle.
You may cast a spell with mana value X or less from your hand without paying its mana cost, where X is the number of colors among nontoken permanents you control.

Whenever you cast an instant or sorcery spell, put a counter on Gi-Gecha, Tide of Victory from among flying, vigilance, trample, and +1/+1 that it doesn't have on it.
As long as Gi-Gecha has four or more counters on it, it has hexproof and is an artifact creature.
Crew 3

Lifelink
When Gloomy Meteorologist enters, it acclimates.
Whenever an ability of a Weather you control triggers, Gloomy Meteorologist deals 1 damage to target player or planeswalker.

When Gone Pickin' enters, exile up to one target nonland permanent an opponent controls until Gone Pickin' leaves the battlefield. Then create a Berry token. You may attach it to a creature you control.

When this creature enters, choose one —
• Exile target enchantment.
• Exile target player's graveyard.

Landfall — Whenever a land you control enters, make a pledge.

Search your library for a basic land card, put it into the battlefield tapped, then shuffle. If this spell's flashback cost was paid, search your library for a land card rather than a basic land card.
Flashback—{G}, Sacrifice a land.

Search your library for up to two Forest cards, reveal them, put them into your hand, then shuffle.

Flash
Gulping Meqmaw's power is equal to the total number of permanents with flash you control and instant cards in your graveyard.
Whenever you cast a spell during an opponent's turn, mill two cards.

Whenever you attack, attacking creatures you control get +1/+1 until end of turn.

Landfall — Whenever a land you control enters, you may attach Hard Stone to target creature.
Equipped creature gets +3/+3.
Equip {3}

Target creature you control deals damage equal to its power to target creature. If this spell's flashback cost was paid, it deals that much damage to target player instead.
Flashback {4}{R}

When Harvesting Blade enters, target opponent exiles two cards from their hand.
Equipped creature gets +2/+1 and has “When this creature dies, you may cast a card exiled with Harvesting Blade with equal or lesser mana value without paying its mana cost.”
Equip {3}

Choose up to one for each color among blue, black, and red among permanents you control.
• Create two 2/2 colorless Minion creature tokens with decayed.
• You may sacrifice a creature. If you do, draw two cards.
• Until end of turn, creatures lose all abilities.

Whenever Hazakh Conscriptor deals combat damage to a player, create a 2/2 colorless Minion creature token with decayed.

Flash
When Hazard Blade enters, destroy target creature an opponent controls that was dealt damage this turn.
Equipped creature get +4/+0.
Equip {5}

When Hearty Roughrider enters or leaves the battlefield, you gain life equal to the greatest toughness among creatures you control.
Wander {4}{G}{G}

At the beginning of combat on your turn, if you have at least 3 life more than your starting life total, untap target land.

When Heavy Winds enters and whenever you cast a spell, prevent all damage up to one target permanent would deal this turn.

Favored
Whenever your Champion attacks, scry 1.

Flying
When Herald of Drizzles enters, it acclimates.

Level up {2}{W}
[level 1-2] Whenever you attack, target creature gets +2/+0 until end of turn.
[level 3+] Whenever you attack, target creature gets +5/+0 until end of turn.