Black Bird Manipulation

Commander creatures you own have "When this creature attacks you may pay {2}{u/b} and 2 life. When you
do create two 1/2 blue Bird creature tokens with flying named Storm Crow" and "Bado Sutoraiku — Birds you control have "{2}{b}: This creature gets +1/+0 and gains 'Sacrifice this creature at the beginning of the next end step.'. Until end of tur1n when this creature dies this turn it deals damage equal to its power to any nonplayer target. Activate only once"."
Whenever you cast a Techniqu