mtg overlord cards Of The Mistmoors Fractured Foil then you may return a non Overlord of the Hauntwoods –

Most importantly, giving your demon deck that would otherwise just be heavy on black access to blue is bound to be useful, giving it access to stronger draw spells and counterspells

Honourable mentions It would be remiss to ignore the only Planeswalker in Magic: the Gathering Wilds of Eldraine, Ashiok, Wicked Manipulator

Creature - Elf Draw (CTRL to add secondary) Finisher Finisher (CTRL to add secondary) Land Path of Ancestry This land enters tapped

Youre getting a lot of value for just three mana here, even if it takes some time to show itself, and if you really want to take advantage of the reanimation bit, Thraximundar and Vein Ripper are some very large targets for the third chapter