Nijigami, Rainbow Dragon

Flying, fading 4 (This creature enters the battlefield
with four fade counters on it. At the beginning of your upkeep, remove a fade counter from it. If you can't, sacrifice it.)
Whenever a fade counter is removed from
Nijigami, Rainbow Dragon, you may exile a
Dragon creature card from your graveyard. If
you do, create a token that's a copy of that card
except it's a Spirit in addition to its other types
and has fading 1.