
All Slivers have "{T}: Target Sliver creature gets +X/+0 until end of turn, where X is the number of Slivers on the battlefield."
Magma Sliver has 3 printings, first in Legions (2003). EDHREC ranks it #12,060 among Commander cards. It appears most in The First Sliver decks (4,340 on EDHREC). It has 2 official rulings.
Deck counts from EDHREC.
Cards that show up in the same decks on EDHREC.