an event that reduces the damage of a player & stacks!
for instance :
onactivate > player > reduce_damage > [ 5% ]
the damage would only be reduced as long as the player is alive
once the player dies and respawns, the damage absorber would be 0%
damage should stack : if a player activates a brick that grants 5% damage reduction while having a 5% damage reduction already, they should then have a 10% damage reduction!
