Cold Fuser

Fusion
Creatures can only fuse into Cold Fuser if {s} was spent to cast it (It can still fuse into other creatures with fusion).
"In my younger days, while I was exploring the frozen marunda wastes, I discoverd, or rather re-discovered, the cold fuser. It was a strange design from a strange time, only being able to fuse in the snow." -Eddie, Fusion Genius