Selvala, Explorer Returned

Parley — {T}: Each player reveals the top card of their library. For each nonland card revealed this way, add {G} and you gain 1 life. Then each player draws a card.

Hurricane

Hurricane deals X damage to each creature with flying and each player.

Hornet Sting

Hornet Sting deals 1 damage to any target.

Ichneumon Druid

Whenever an opponent casts an instant spell other than the first instant spell that player casts each turn, Ichneumon Druid deals 4 damage to that player.

Howling Gale

Howling Gale deals 1 damage to each creature with flying and each player.
Flashback {1}{G} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Claws of Wirewood

Claws of Wirewood deals 3 damage to each creature with flying and each player.
Cycling {2} ({2}, Discard this card: Draw a card.)

Divine Deflection

Prevent the next X damage that would be dealt to you and/or permanents you control this turn. If damage is prevented this way, Divine Deflection deals that much damage to any target.

Storm Seeker

Storm Seeker deals damage to target player equal to the number of cards in that player's hand.

Heartwood Giant

{T}, Sacrifice a Forest: Heartwood Giant deals 2 damage to target player or planeswalker.

Intervention Pact

The next time a source of your choice would deal damage to you this turn, prevent that damage. You gain life equal to the damage prevented this way.
At the beginning of your next upkeep, pay {1}{W}{W}. If you don't, you lose the game.

Comeuppance

Prevent all damage that would be dealt to you and planeswalkers you control this turn by sources you don't control. If damage from a creature source is prevented this way, Comeuppance deals that much damage to that creature. If damage from a noncreature source is prevented this way, Comeuppance deals that much damage to the source's controller.

Unyaro Bee Sting

Unyaro Bee Sting deals 2 damage to any target.

Greatbow Doyen

Other Archer creatures you control get +1/+1.
Whenever an Archer you control deals damage to a creature, that Archer deals that much damage to that creature's controller.

Squall Line

Squall Line deals X damage to each creature with flying and each player.

Squallmonger

{2}: Squallmonger deals 1 damage to each creature with flying and each player. Any player may activate this ability.

Cloudthresher

Flash
Reach
When Cloudthresher enters the battlefield, it deals 2 damage to each creature with flying and each player.
Evoke {2}{G}{G} (You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters the battlefield.)

Bee Sting

Primal Order

At the beginning of each player's upkeep, Primal Order deals damage to that player equal to the number of nonbasic lands they control.

Borrowing the East Wind

Borrowing the East Wind deals X damage to each creature with horsemanship and each player.

Ifh-Bíff Efreet

Flying
{G}: Ifh-Bíff Efreet deals 1 damage to each creature with flying and each player. Any player may activate this ability.