mtg warhammer card sleeves 110 x War Hammer Quest Compatible (75mm x 110mm) With 50 card sleeves featuring a Warhammer PROTECT YOUR COLLECTIBLE CARDS -

I can't see any way to do anything great with this, but a card that does this many things usually has some potential

To get the Magical Christmasland outcome, you need to run few creatures to avoid having to sacrifice them, a ton of colorless mana ramp, quite a bit of colorless bounce spells, and likely some colorless discard outlets

When creatures die, you create Devil tokens that deal damage on their way out too

If any of the exiled cards has a characteristic-defining ability that defines its power and/or toughness, that ability will apply

The extra casting cost is more than offset by the generic mana cost in use