Gemstone Caverns - The List (PLIST) CHK "We've merged your life essence

"We've merged your life essence with that of several creatures at once

Protection from black Threshold — As long as seven or more cards are in your graveyard

and you can turn a gift for one into a gift for many

Sacrifice a creature: Lyzolda

you may put a permanent card with mana value less than or equal to that creature's power from your hand onto the battlefield

Gemstone Caverns - The List (PLIST) CHK "We've merged your life essenceIf Gemstone Caverns 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.