At the beginning of combat on your turn, target creature you control gains double strike until end of turn.

Trample

Whenever this creature attacks, another target creature you control gains trample and gets +X/+X until end of turn, where X is this creature's power.

Indestructible

As long as your devotion to green is less than five, Nylea isn't a creature.

Creature spells you cast cost less to cast.

: Reveal the top card of your library. If it's a creature card, put it into your hand. Otherwise, you may put it into your graveyard.

Vivid — At the beginning of combat on your turn, another target creature you control gets +X/+X until end of turn, where X is the number of colors among permanents you control.

Ward

At the beginning of combat on your turn, gain control of target creature an opponent controls until end of turn. Untap that creature. It gains haste until end of turn.

Whenever a creature you control but don't own dies, return it to the battlefield under its owner's control and you draw a card.

At the beginning of combat on your turn, exile target red, white, or black creature card from your graveyard. Create a token that's a copy of that card, except it's 1/1. It gains haste until your next turn.

Formidable — At the beginning of combat on your turn, if creatures you control have total power 8 or greater, target creature you control gains haste until end of turn. (It can attack and no matter when it came under your control.)

At the beginning of each combat, double the power and toughness of each creature you control until end of turn.

Lord of Chaos — At the beginning of combat on your turn, another target creature you control gains double strike until end of turn.

At the beginning of combat on your turn, creatures you control with toughness 4 or greater get +2/+2 and gain vigilance until end of turn.

Flying

At the beginning of combat on your turn, you may pay . When you do, put a +1/+1 counter on another target creature you control, and that creature gains flying until end of turn.

Each Skeleton you control has trample, attacks each combat if able, and gets +X/+0, where X is the number of other Skeletons you control.

At the beginning of your end step, create a tapped 1/1 black Skeleton creature token. If a creature died this turn, create two of those tokens instead.

: Target creature you control with toughness less than this creature's power gains flying until end of turn. Destroy that creature at the beginning of the next end step.

Trample

When this creature enters, choose target creature. If that creature's power is 2 or less or if you control another Lizard, gain control of that creature until end of turn, untap it, and it gains haste until end of turn.

When this enchantment enters, put X +1/+1 counters on target creature, where X is that creature's power.

At the beginning of your end step, draw two cards if you control the creature with the greatest power or tied for the greatest power.

Flying, Haste

: This creature gets +1/+0 until end of turn.

At the beginning of combat on your turn, conjure a random creature card with mana value X onto the battlefield, where X is this creature's power. That creature gains haste. Exile it at the beginning of the next end step.

At the beginning of combat on your turn, create a token that's a copy of target noncreature artifact you control, except its name is Mishra's Warform and it's a 4/4 Construct artifact creature in addition to its other types. It gains haste until end of turn. Sacrifice it at the beginning of the next end step.

Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)

At the beginning of combat on your turn, another target creature you control gains melee until end of turn. (If a creature has multiple instances of melee, each triggers separately.)