mtg.wtf

Rally — Whenever Ondu Champion or another Ally you control enters, creatures you control gain trample until end of turn.

Flying
When Opportunistic Dragon enters, choose target Human or artifact an opponent controls. For as long as Opportunistic Dragon remains on the battlefield, gain control of that permanent, it loses all abilities, and it can't attack or block.

More Than Meets the Eye {2}{U}{R}{W}
At the beginning of each end step, bolster 1.
When Optimus Prime dies, return it to the battlefield converted under its owner's control.

{1}: Turn target permanent you control to its other face.
{1}: Until end of turn, Optimus Prime, Inspiring Leader becomes a Construct with base power and toughness 6/6 and creatures you control gain trample.

Whenever another creature you control enters, target creature an opponent controls gets -1/-1 until end of turn.

Whenever another Treefolk creature you control enters, you may gain life equal to that creature's toughness.

When Orcish Paratroopers enters, flip it from a height of at least one foot. Sacrifice Orcish Paratroopers unless it turns over completely at least once during the flip and lands face up.

{W}: Prevent the next 1 damage that would be dealt to Ordruun Commando this turn.

This spell costs {1} less to cast for each land card in your graveyard.
Flying, haste

Vigilance
{1}, Sacrifice an artifact: Target creature you control gets +2/+0 until end of turn.
{X}, {T}, Exile an artifact card with mana value X from your graveyard: Create two tokens that are copies of the exiled card. Activate only as a sorcery.

Flash
When Otherworldly Escort dies, if it's not a Spirit, return it to the battlefield under its owner's control with four charge counters on it. It's a Spirit Detective.
{1}{W}, {T}, Remove a charge counter from Otherworldly Escort: Destroy target creature that dealt damage to you this turn.

When Outcaster Trailblazer enters, add one mana of any color.
Whenever another creature you control with power 4 or greater enters, draw a card.
Plot {2}{G}

Outland Boar can't be blocked by creatures with power 2 or less.

Whenever an artifact you control enters, you may return Ovalchase Daredevil from your graveyard to your hand.

Enrage — Whenever Overgrown Armasaur is dealt damage, create a 1/1 green Saproling creature token.

Trample
Keen Senses — When Owlbear enters, draw a card.

Vigilance
Ox Drover can't be blocked by Oxen.
Whenever Ox Drover enters or attacks, target opponent creates a 2/4 white Ox creature token and you draw a card.

When Ox of Agonas enters, discard your hand, then draw three cards.
Escape — {R}{R}, Exile eight other cards from your graveyard.
Ox of Agonas escapes with a +1/+1 counter on it.

Oyaminartok, Polar Werebear has hexproof if it hasn't dealt damage yet.
Whenever Oyaminartok deals combat damage to a player, create a Food token.
{U}, Sacrifice a Food: Draft a card from Oyaminartok's spellbook. When you do, add {U}{U}{U}. Spend this mana only to cast blue creature spells.

Flash
When Pack Guardian enters, you may discard a land card. If you do, create a 2/2 green Wolf creature token.

Reach
Forestcycling {2}, plainscycling {2}

{2}{W}{W}, {Q}: Target creature gains protection from the color of its controller's choice until end of turn.

Flying
When Palinchron enters, untap up to seven lands.
{2}{U}{U}: Return Palinchron to its owner's hand.