(A creature with intimidate can't be blocked except by artifact creatures and/or creatures that share a color with it.) Whenever a nontoken creature is put into your graveyard from the battlefield, you may pay
The card Giant Cobra - Ghostly Serpent, another of the dual-ink cards like Jafar - Newly Crowned, is a fantastic card to use
For the cost of one Lightning, one Psychic, and one Darkness Energy (as well as discarding all Energy from Umbreon ex), you can take a Prize card without needing to Knock Out an opposing Pokmon
Undead Augur can represent a lot of cards for a synergistic creature type given the reanimation in zombie decks
Vilis, Broker of Blood instead forces you to draw a card for each life point you lose
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