Birb God's Summoning

Chose one or both.
Lose X life for each choice you chose.
Create X 2/2 black Human Assassins with Lifelink and Deathtouch.
Create Y x/x Phoenix's Followers, where Y is half of X. (The mana cost.)(Rounded down.)
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"The birb god's influence summons people for the birb god's needs."