bolas's beast

+3: bolas's beast attacks with its loyalty as power and toughness with doublestrike if a creature is destroyed this way give nicol bolas 3 loyalty.
-2: give 3 of your creatures deathtouch and vigilance and 3 +1/+1 counters.
-10: all of your creatures gain first strike deathtouch and flying , nicol bolas gets 10 loyalty.