Célibataires MTG

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

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

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

Flying

Destroy target artifact or enchantment, then populate. (Create a token that's a copy of a creature token you control.)

Haste

When Seller of Songbirds enters the battlefield, create a 1/1 white Bird creature token with flying.

{U/R}: Frostburn Weird gets +1/-1 until end of turn.

{5}{G}: Regenerate Selesnya Sentry.

Defender Reach (This creature can block creatures with flying.) {1}{B}{G}: Regenerate Trestle Troll.

Armory Guard has vigilance as long as you control a Gate.

Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.)

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.) Scavenge {1}{B}{G} ({1}{B}{G}, Exile this card from your gravey...

Skull Rend deals 2 damage to each opponent. Those players each discard two cards at random.

Target player reveals their hand. You gain life equal to the number of cards in that player's hand.

Populate. Creatures you control gain indestructible until end of turn. (To populate, create a token that's a copy of a creature token you control.)

Flash (You may cast this spell any time you could cast an instant.) Vigilance

Instant and sorcery spells you cast cost {1} less to cast.

Counter target creature spell. Essence Backlash deals damage equal to that spell's power to its controller.

Return target creature to its owner's hand. You gain 2 life.

Create a 3/3 green Centaur creature token, then populate. (Create a token that's a copy of a creature token you control.)

Put a +1/+1 counter on target creature. Put a +1/+1 counter on target creature.

Target creature you don't control gets -2/-0 until end of turn and attacks this turn if able. Overload {3}{U}{R} (You may cast this spell for its o...