Indigo-Eyes Silver Dragon

Overlay 8 - Dragon (You may cast Indigo-Eyes Silver Dragon from your deck by sacrificing 2 or more Dragon creatures with mana value 8 exactly, put an overlay counter on Indigo-Eyes Silver Dragon for each creature sacrificed)
When Indigo-Eyes Silver Dragon is cast with Overlay all creatures your opponents control lose all abilities.
Indigo-Eyes Silver Dragon gains +0/+2 for each overlay counter on it.
Remove an overlay counter from Indigo-Eyes Silver
Dragon: Return a Dragon creature from your graveyar