Amara, the Pouncing Tiger

Cooldown (Activated abilities of this creature can't
be activated if it has cooldown counters on it. At the
beginning of your upkeep, remove one counter).
{1}, Put three cooldown counters on Amara:
Amara, The Pouncing Tiger deals 1 damage to
each creature you don't control, prevent all
combat damage dealt by them this turn. Amara
assigns combat damage as though it were
unblocked this turn. Activate this ability only if
Amara is attacking.