Legions

As long as you control a Beast, Skirk Outrider gets +2/+2 and has trample.

Beasts can't block.

Whenever a Beast enters the battlefield, you may gain 3 life.

All Sliver creatures get +1/+0.

Noncreature spells cost {1} more to cast.

When Elvish Soultiller dies, choose a creature type. Shuffle all creature cards of that type from your graveyard into your library.

Amplify 1 (As this creature enters the battlefield, put a +1/+1 counter on it for each Zombie card you reveal in your hand.) At the beginning of yo...

Morph {2}{G} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When Patron of the Wild is ...

Cycling {2}{G}{G} ({2}{G}{G}, Discard this card: Draw a card.) When you cycle Gempalm Strider, Elf creatures get +2/+2 until end of turn.

As long as you control a Bird, Cloudreach Cavalry gets +2/+2 and has flying.

{T}, Sacrifice a Goblin: Goblin creatures get +2/+0 until end of turn.

Morph {3}{B}{B} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When Skinthinner is tur...

When Goblin Firebug leaves the battlefield, sacrifice a land.

Cycling {2}{U} ({2}{U}, Discard this card: Draw a card.) When you cycle Gempalm Sorcerer, Wizard creatures gain flying until end of turn.

This spell can't be countered. Vexing Beetle gets +3/+3 as long as no opponent controls a creature.

Morph {W} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When Daru Mender is turned fac...

{2}{B}, {T}, Sacrifice a Zombie: Destroy target non-Zombie creature. It can't be regenerated. Activate only as a sorcery.

Whenever a player cycles a card, Warped Researcher gains flying and shroud until end of turn. (It can't be the target of spells or abilities.)

Flying {1}: Swooping Talon loses flying until end of turn. Provoke (Whenever this creature attacks, you may have target creature defending player c...

Vigilance Morph {1}{W} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When Liege of the...

Reach (This creature can block creatures with flying.)

Amplify 1 (As this creature enters the battlefield, put a +1/+1 counter on it for each Beast card you reveal in your hand.)

Amplify 2 (As this creature enters the battlefield, put two +1/+1 counters on it for each Beast card you reveal in your hand.) Provoke (Whenever th...

Amplify 1 (As this creature enters the battlefield, put a +1/+1 counter on it for each Beast card you reveal in your hand.) {T}: Target creature ge...