Fields of Summer (Planechase Anthology) [Planechase Anthology Planes] Eldritch Moon you may cast the copy

you may cast the copy without paying its mana cost

others follow

Set: Friday Night Magic 2005 Type: Instant Rare Cost: {U}{U} Counter target spell

Set: Dominaria Promos Type: Legendary Creature — Human Artificer Mythic Cost: {2}{U}{R} Whenever you cast a historic spell

Set: Limited Edition Alpha Type: Sorcery Rare Cost: {X}{U}{U}{U} Destroy X target Mountains

Fields of Summer (Planechase Anthology) [Planechase Anthology Planes] Eldritch Moon you may cast the copySet: Planechase Anthology Planes Type: Plane Moag Common Cost: Whenever a player casts a spell, that player may gain 2 life. Whenever you roll {CHAOS}, you may gain 10 life.