mtg.wtf

Xantcha, Sleeper Agent enters under the control of an opponent of your choice.
Xantcha attacks each combat if able and can't attack its owner or planeswalkers its owner controls.
{3}: Xantcha's controller loses 2 life and you draw a card. Any player may activate this ability.

Trample, haste
Cumulative upkeep {G}{G}

First strike

When Yuki-Onna enters, destroy target artifact.
Whenever you cast a Spirit or Arcane spell, you may return Yuki-Onna to its owner's hand.

Commander ninjutsu {U}{B}
Whenever a Ninja you control deals combat damage to a player, reveal the top card of your library and put that card into your hand. Each opponent loses life equal to that card's mana value.

Flanking
{W}{W}: Zhalfirin Knight gains first strike until end of turn.

Return target creature card from your graveyard to the battlefield.