Sierra Madre Hologram

Artifact creatures you control have afflict 3.
(Whenever a creature with afflict 3 becomes
blocked, defending player loses 3 life.)
"I've seen some survive concentration of the Cloud for
short periods of time if healthy enough - others were
too weak. Rebreathers, chemical suits... there is no
protection against it, it decays all it touches. I've
found fighting it useless."