mtg modern legal cards / Format Ulalek, Fused Atrocity | Modern

The commander is allowed to have a couple extra bells and whistles attached to it, but it's all about that easy card draw, baby

By sacrificing Mausoleum Wanderer, its controller can counter target Instant or Sorcery spell unless the opponent plays X, where X is Mausoleum Wanderer's power

This means you could have it come in as a fetch land, or a land that can turn into a creature, or countless other amazing land cards that Magic: The Gathering has released over its many years

If the target permanent is an illegal target by the time Feed the Swarm tries to resolve, the spell doesn't resolve

Identity Thief will still be a copy of the creature during the next end step when the exiled card returns