Gemstone Caverns - The List (PLIST) CHK chittering swarm is a unique

chittering swarm is a unique mind

All Slivers have "At the beginning of your upkeep

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

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

Its controller gains 3 life

Gemstone Caverns - The List (PLIST) CHK chittering swarm is a uniqueIf 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.