Golos, Pilgrim of the Abyss

Eminence- As long as Golos, Pilgrim of the
Abyss is in the Command Zone, you may cast
spells for {w}{u}{b}{r}{g} instead of paying their
mana costs.
As long as you control a card with converted mana
cost 10 or greater, Creatures you control get
+10/+10.
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"I travel only to see what I'll find."