Snake of the Golden Grove

Tribute 3 (As this creature enters, an opponent of your choice may put three +1/+1 counters on it.)
When Snake of the Golden Grove enters, if tribute wasn't paid, you gain 4 life.

Prescient Chimera

Flying
Whenever you cast an instant or sorcery spell, scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Voyage's End

Return target creature to its owner's hand. Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Swordwise Centaur

Elvish Mystic

Divination

Cloaked Siren

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

Shaman of Spring

When Shaman of Spring enters, draw a card.

Time to Feed

Choose target creature an opponent controls. When that creature dies this turn, you gain 3 life. Target creature you control fights that creature. (Each deals damage equal to its power to the other.)

Island

Forest

Titanic Growth

Target creature gets +4/+4 until end of turn.

Evolving Wilds

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Garruk's Packleader

Whenever another creature you control with power 3 or greater enters, you may draw a card.

Void Snare

Return target nonland permanent to its owner's hand.

Vaporkin

Flying
Vaporkin can block only creatures with flying.

Omenspeaker

When Omenspeaker enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)

Centaur Courser

Frost Lynx

When Frost Lynx enters, tap target creature an opponent controls. That creature doesn't untap during its controller's next untap step.

Satyr Grovedancer

When Satyr Grovedancer enters, put a +1/+1 counter on target creature.

Into the Void

Return up to two target creatures to their owners' hands.

Negate

Nullify

Benthic Giant

Hexproof (This creature can't be the target of spells or abilities your opponents control.)

Carnivorous Moss-Beast

{5}{G}{G}: Put a +1/+1 counter on Carnivorous Moss-Beast.

Murmuring Phantasm

Voyaging Satyr

Mahamoti Djinn

Flying (This creature can't be blocked except by creatures with flying or reach.)

Terra Stomper

This spell can't be countered.
Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Annul

Counter target artifact or enchantment spell.

Archetype of Imagination

Creatures you control have flying.
Creatures your opponents control lose flying and can't have or gain flying.