Gemstone Caverns (Borderless - Galaxy Foil) Edge of Eternities Flying Whenever this creature enters

Flying Whenever this creature enters or attacks

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

Knight creatures you control have double strike

for each of them

As long as this creature is attacking

Gemstone Caverns (Borderless - Galaxy Foil) Edge of Eternities Flying Whenever this creature entersIf 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.