Phaserbeam,Lord of Lightning

Double strike, trample, indestructible
Phaserbeam, Elemental Lord can't attack or block unless you have {u}{r}{g} among other Elemental creatures you control.
Whenever Phaserbeam deals combat damage to a player, you may draw that many cards. If you do, discard that many cards.
Whenever a land is put into a graveyard from anywhere, Phaserbeam deals 1 damage to any
target.