Gustov, Woudning Warrior

First Strike, Ward—Pay 5 life
Damage marked on creatures isn't removed.
If an effect that would be put on a creature you control would give that creature additional power and/or toughness until end of turn, that effect loses its until end of turn property.
If damage would be dealt to Gustov, prevent 2 of that damage. If damage would be dealt to another creature you control, prevent 1 of the damage.