{T}: Add {C}.
{2}, {T}: Add two mana of different colors.
{4}, {T}: Look at the top X cards of your library, where X is the number of different color pairs among permanents you control that are exactly two colors. Put one of those cards into your hand and the rest on the bottom of your library in a random order.

Gates to the Underworld enters tapped.
{T}: Add {W} or {B}.
{5}{W/B}: Gates to the Underworld becomes a 3/4 white and black Construct creature with lifelink until end of turn. It's still a land. This ability costs {X} less to activate, where X is your devotion to white and black. Activate only once each turn.

Whenever you sacrifice a nonland permanent, each opponent sacrifices a permanent that shares a card type with it.
{3}, {T}, Sacrifice another creature: Gatherer of Grievances deals damage equal to the sacrificed creature's power to target player. Activate only as a sorcery.

You may look at the top card of your library any time.
Approval — Once during each of your turns, you may cast a spell with mana value less than or equal to the number of colors among permanents you control from your hand or the top of your library without paying its mana cost.

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.

Trample
Damned — Whenever this creature enters or attacks, if you've sacrificed a permanent this turn, this creature deals 3 damage to any target and you gain 3 life.

Trample, haste
Landfall — When a land you control enters, target creature can't block this turn.
At the beginning of your end step, return Generator Alpha or a land you control to its owner's hand.

When Generous Farmer enters, create a Berry token.
Whenever you sacrifice a Berry, create a 1/1 green Plant creature token.

Genetics Prodigy enters with a +1/+1 counter, a flying counter, and a vigilance counter on it.
Whenever Genetics Prodigy attacks, you may remove a counter from it. If you do, draw a card.

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 pay {X}. When you do, choose up to X. Each mode must have different targets.
• Teach target creature flying.
• Teach target creature lifelink.
• Teach target creature vigilance.

Exile target spell you don't control. After this turn has ended, its owner may cast that card from exile by discarding a card in addition to paying its other costs.

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

Look at the top six cards of your library. You may put a permanent card from among them onto the battlefield. If a creature is put onto the battlefield this way, put X +1/+1 counters on it, where X is its power. Put the rest of the cards on the bottom of your library in a random order.

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.

Vigilance
Approval — {1}{G}: Target creature gets +X/+X until end of turn, where X is the number of colors among permanents you control. Activate only once each turn and only as a sorcery.

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.

Flash
When Getaway Proxy enters, you may choose another creature you control. Move any number of counters from that creature onto Getaway Proxy. Attach to Getaway Proxy any number of Auras that are attached to that creature. Then return that creature to its owner's hand.

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 one or more creatures you control deal combat damage to an opponent, exile the top card of your library. Then you may create a 1/1 colorless Construct artifact creature token. If you don't, you may play the exiled card until end of turn.