Ulvenwald Observer

5, T, Sacrifice this artifact: Exile target creature card from your graveyard. Create a token that's a copy of that card, except it's 1/1, it's a Spirit in addition to its other types, and it has flying. Create a black Zombie creature token with power equal to that card's power and toughness equal to that card's toughness.

When Gisa and Geralf enters, mill four cards. Once during each of your turns, you may cast a Zombie creature spell from your graveyard.

When you cast this spell, you may return target Angel or Human creature card from your graveyard to the battlefield. Flying, vigilance (Melds with Gisela, the Broken Blade.)

Flash Emerge 5UU (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, tap up to four target permanents.

You may cast this card from exile. When this creature becomes the target of a spell or ability an opponent controls, exile this creature.

Trample, haste When this creature attacks, up to one target creature defending player controls blocks it this combat if able. At the beginning of the end step, sacrifice this creature.

As an additional cost to cast this spell, sacrifice a creature. Search your library for a creature card with mana value X or less, where X is 2 plus the sacrificed creature's mana value. Put that card onto the battlefield, then shuffle. Exile Eldritch Evolution.

+1: Choose up to two target creatures. Until your next turn, whenever either of those creatures deals combat damage, you draw a card. −2: Tap up to two target nonland permanents. They don't untap during their controller's next untap step. −7: Draw three cards. You get an emblem with "You may cast spells from your hand without paying their mana costs."