Standard MTG sets

Simic Guildgate enters tapped. {T}: Add {G} or {U}.

Whenever a creature you control deals combat damage to a player, put a loyalty counter on Kaito. [+1]: Up to one target creature you control can't ...

Selesnya Guildgate enters tapped. {T}: Add {G} or {W}.

Flying At the beginning of each combat, any opponent may sacrifice a creature. If a player does, tap Desecration Demon and put a +1/+1 counter on it.

Rakdos Guildgate enters tapped. {T}: Add {B} or {R}.

At the beginning of your upkeep, choose one that hasn't been chosen — • Demonic Pact deals 4 damage to any target and you gain 4 life. • Target opp...

Orzhov Guildgate enters tapped. {T}: Add {W} or {B}.

Flash (You may cast this spell any time you could cast an instant.) Flying You can't lose the game and your opponents can't win the game.

Izzet Guildgate enters tapped. {T}: Add {U} or {R}.

Destroy target green or white creature.

Gruul Guildgate enters tapped. {T}: Add {R} or {G}.

Golgari Guildgate enters tapped. {T}: Add {B} or {G}.

Destroy all creatures.

Dimir Guildgate enters tapped. {T}: Add {U} or {B}.

{T}: Add {C}. {2}, {T}, Sacrifice Demolition Field: Destroy target nonbasic land an opponent controls. That land's controller may search their libr...

Return target creature to its owner's hand.

{T}: Add {C}. {1}, {T}, Sacrifice Cryptic Caves: Draw a card. Activate only if you control five or more lands.

Protection from everything If Progenitus would be put into a graveyard from anywhere, reveal Progenitus and shuffle it into its owner's library ins...

Boros Guildgate enters tapped. {T}: Add {R} or {W}.

This spell can't be countered. Flying, hexproof Instant and sorcery spells you control can't be countered.

Azorius Guildgate enters tapped. {T}: Add {W} or {U}.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) When Shipwreck Dowser enters, return target instant or...