Dissenter's revenge

When Dissenter's revenge enters the battlefield,
each creature you control gains double strike, haste
and vigilance. Untap those creatures. Whenever a
land is tapped for mana, that land's controller sacrifices it and creates a 4/3 red angel creature
token with vigilance, first strike and haste and "at
the beginning of each end steps, this
creature deals 4 damage to its controller."