Keith BLK Market Mercenary

You have Protection from mercenaries, First Strike
Strength in numbers When you attack with 3 or more mercenaries they gain double strike
When Keith enters the battlefield creat a 2/1 Mercenary creature with first strike
Pay{w/b}{w/b}{w/b} Create a 2/1 mercenary with first strike
Opponents may pay 3 life and create a 3/3 mercenary with first strike, you create 3 treasure tokens