Pioneer / Post-Modern Era

Spectacle {2}{B} (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.) When Blade Juggler ...

When Naga Oracle enters the battlefield, look at the top three cards of your library. Put any number of them into your graveyard and the rest back ...

Whenever Phase Dolphin attacks, another target attacking creature can't be blocked this turn.

Relic Runner can't be blocked if you've cast a historic spell this turn. (Artifacts, legendaries, and Sagas are historic.)

Constellation — Whenever an enchantment enters the battlefield under your control, target player mills two cards.

Whenever Queen of Ice deals combat damage to a creature, tap that creature. It doesn't untap during its controller's next untap step.

{5}{U}{U}: Frilled Sea Serpent can't be blocked this turn.

Flying

Defender When Barrier of Bones enters the battlefield, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

When Pursued Whale enters the battlefield, each opponent creates a 1/1 red Pirate creature token with "This creature can't block" and "Creatures yo...

When Overwhelmed Apprentice enters the battlefield, each opponent mills two cards. Then you scry 2. (Look at the top two cards of your library, the...

Flying Whenever Warkite Marauder attacks, target creature defending player controls loses all abilities and has base power and toughness 0/1 until ...

Constellation — Whenever an enchantment enters the battlefield under your control, you may have Protean Thaumaturge become a copy of another target...

Flying Other creatures you control with flying get +1/+0.

Lifelink

When Civic Stalwart enters the battlefield, creatures you control get +1/+1 until end of turn.

Prevent all combat damage that would be dealt to Everdawn Champion.

When Bartered Cow dies or when you discard it, create a Food token. (It's an artifact with "{2}, {T}, Sacrifice this artifact: You gain 3 life.")

Constellation — Whenever an enchantment enters the battlefield under your control, tap target creature an opponent controls.

Flying When Watcher in the Mist enters the battlefield, surveil 2. (Look at the top two cards of your library, then put any number of them into you...

When Kiora's Dambreaker enters the battlefield, proliferate. (Choose any number of permanents and/or players, then give each another counter of eac...