Defender

: Exchange target opponent's life total with Tree of Perdition's toughness.

Whenever this creature enters the battlefield or transforms into Ulrich of the Krallenhorde, target creature gets +4/+4 until end of turn.

At the beginning of each upkeep, if no spells were cast last turn, transform Ulrich of the Krallenhorde.

: Add .

Whenever a creature you control with toughness 4 or greater dies, draw a card.

Skulk (This creature can't be blocked by creatures with greater power.)

Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Trample

: Vildin-Pack Outcast gets +1/-1 until end of turn.

: Transform Vildin-Pack Outcast.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Instant and sorcery spells you cast cost less to cast.

Transform up to one target Werewolf you control. Creatures you control gain trample until end of turn.

Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Target opponent discards a card at random.

Delirium — If there are four or more card types among cards in your graveyard, that player discards two cards at random instead.

Target creature you control gets +3/+3 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

Emerge (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)

When you cast this spell, draw a card.

Flying