Beholder

{w}: you gain X life, activate only once each turn, activate only as a sorcery.
{g}: target creature gets +X/+X until end of turn, activate only once each turn, activate only as a sorcery.
{b}: destroy target creature with toughness X or less, activate only once per turn, activate only as a sorcery.
{u}: tap up to X target creatures, activate only once per turn, activate only as a sorcery
{r}: deal X damage to target player, activate only as a sorcery, activate only once each turn.
Beholder enters wi