Hollowhenge Abomination

Menace
If a land is tapped for mana, its controller may
have Hollowhenge Abomination deal 3 damage to
them. If that player doesn't, that land produces {r} instead of any other type.
At the beginning of your end step, choose one:
•Hollowhenge Abomination fights target creature
you control.
•Sacrifice three lands.