Skirnir, Lost Sword of Frey

Equipped creature gets +3/+3 and has trample
and "If a creature dealt combat damage by this
creature would die, exile it instead."
Unless Ragnarok has begun, Skirnir has
"Equip legendary creature {0}"
If Ragnarok has begun, Skirnir has "Equip
Fire Giant {0}"
Equip {3}