Aluren/ Cloudstone Curio Annihilation

All permanents are artifacts in addition to their other types. All cards that aren't on the battlefield, spells, and permanents are colorless. Players may spend mana as though it were mana of any color.

Whenever a nonartifact permanent you control enters, you may return another permanent you control that shares a permanent type with it to its owner's hand.

Any player may cast creature spells with mana value 3 or less without paying their mana costs and as though they had flash.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) When this creature enters, destroy target artifact.