Gemstone Caverns (Borderless - Galaxy Foil) Edge of Eternities {T}: Double target creature's power

{T}: Double target creature's power until end of turn

that creature attacks each combat if able and attacks a player other than you if able

Knight creatures you control have double strike

up to one target noncreature artifact they control becomes a 0/4 Wall artifact creature with defender for as long as you control this Saga

I — Each player gets three rad counters

Gemstone Caverns (Borderless - Galaxy Foil) Edge of Eternities {T}: Double target creature's powerIf this card is in your opening hand and you're not the starting player, you may begin the game with Gemstone Caverns on the battlefield with a luck counter on it. If you do, exile a card from your hand. {T}: Add {C}. If Gemstone Caverns has a luck counter on it, instead add one mana of any color.