Stoneshock Giant is a uncommon Creature — Giant card from Commander Anthology Volume II (CM2), collector number 120. Current market price: $0.13, TCGplayer market prices via Scryfall.
{6}{R}{R}: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.) When this creature becomes monstrous, creatures without flying your opponents control can't block this turn.