Mask of Immolation

Text:

When Mask of Immolation enters the battlefield, create a 1/1 red Elemental creature token, then attach Mask of Immolation to it.
Equipped creature has "Sacrifice this creature: It deals 1 damage to any target."
Equip (: Attach to target creature you control. Equip only as a sorcery.)

Rulings:

• 7/12/2019 No player may take any actions between the time you create the Elemental token and the time Mask of Immolation becomes attached to it.
• 7/12/2019 The equipped creature is the source of the activated ability and the source of the damage, not Mask of Immolation. This means that a green creature equipped by Mask of Immolation may deal damage to a creature with protection from red but may not deal damage to a creature with protection from green.