Smellies - Agile Attacker

+1: All creatures, and all that have entered the battlefield or will enter the battlefield, gain haste until end of turn
-3: You may use this ability at any time an instant can be used: Target creature takes 5 damage. Target creature gains first strike until end of turn
-6: You may use this ability at any time an instant can be used: All creatures you control gain haste and double strike until end of turn