Before equipped creature would assign, deal, or be dealt damage, sacrifice Figy Berry. If you do, equipped creature gets +2/+2 until end of turn.
Equip {1}
{7}, Sacrifice Figy Berry: Destroy target nonland permanent.

Haste
Whenever a player casts a spell, if no mana from a basic source was spent to cast it, Flaw in the System deals 2 damage to that player.

Equipped creature gets +2/+2 and can't be blocked by more than one creature.
Equip {4}

When Forgemaster Dreadnought enters, create three Treasure tokens.
Spellcharge 9

Whenever Forgotten Cultivator attacks, mill three cards. Return a permanent card from among the milled cards to your hand.
Spellcharge 4

Whenever you attack, create a 1/1 colorless Soldier creature token that's tapped and attacking.

As an additional cost to cast instant and sorcery spells, you may pay {X}, where X is that spell's mana value. If you do, copy that spell, and you may choose new targets for the copy.
Spellcharge 4

[+1]: Discard up to two cards, then draw that many cards.
[–1]: You may sacrifice a creature. When you do, return target creature card with equal or lesser mana value from your graveyard to the battlefield tapped.
[–2]: You may exile a creature card from your graveyard. When you do, Garren deals damage equal to the exiled creature's power to target creature.

Menace
Whenever Gelthis deals combat damage to a player, that player reveals their hand. You choose a nonland card from it. Exile that card until Gelthis leaves the battlefield.
Spellcharge 3

Whenever you draw or cache a card, put a +1/+1 counter on up to one target land.
At the beginning of combat on your turn, untap up to one target land you control. It becomes a 3/3 creature with vigilance, hexproof, and haste until end of turn. It's still a land.

You and General Diadem have hexproof as long as you control an artifact creature.
{1}, Sacrifice another nonland, non-Knight permanent: Create a 3/3 black Cyborg Knight artifact creature token.

When this creature enters, search your library for a basic land card, cache it, then shuffle.

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.

Flying
When Gereishin enters, if it was cast, you may cast a Dragon spell or a spell with mana value 6 or less from your hand without paying its mana cost.
Once during each of your turns, when you spend less mana to cast a spell than its mana value, you may have Gereishin deal damage to up to one target creature equal to the difference.

[+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.

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

This spell costs {1} less to cast for each card with a cycling ability in your graveyard.
Reach

Whenever you play a card with mana value equal to the number of charge counters on Gilded Font, put a charge counter on it.
{2}, Sacrifice Gilded Font: You draw X cards and gain twice X life, where X is the number of charge counters on Gilded Font.

[+1]: You may discard a card, sacrifice another nonland permanent, or pay 3 life. If you do, draw a card.
[–2]: You may discard a card, sacrifice another nonland permanent, or pay 3 life. If you do, target opponent discards a card, sacrifices a nonland permanent, and loses 3 life.
[–6]: You get an emblem with “Whenever a creature dies, you may exile it from its owner's graveyard. If you do, until your next end step, you may cast copies of the exiled card.”

When Glassblower's Forge enters, draw a card.
{1}, {T}, Sacrifice Glassblower's Forge and another artifact or enchantment: Draw a card.

When Gnosa, Research Executive enters, gain control of target nonland permanent until the end of your next turn. Untap it.
Each permanent you control but don't own must be the targets of spells its owner casts if able.

Before equipped creature would assign, deal, or be dealt damage, sacrifice Gold Berry. If you do, equipped creature gets +2/+2 until end of turn.
When you sacrifice Gold Berry, create a Berry token and a Treasure token.
Equip {1}

Flash
When Grasping Ancient enters, exile up to one target instant or sorcery spell.
Whenever Grasping Ancient attacks, you may cast the exiled card without paying its mana cost.
Spellcharge 4

At the beginning of combat on your turn, put a +1/+1 counter on equipped creature.
Equipped creature has flying as long as it has two or more +1/+1 counters on it.
Equipped creature has double strike as long as it has four or more +1/+1 counters on it.
Equip {2}

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