An obvious reference to (Queens rapper) Rakim’s boast that he will put 7x3 emcees in a line and devour them.
The clear implication is that Nas is the biological father, or at least that this is what the child will be told — to be “above her years” is to be more advanced/mature than her, something unlikely to be said about a deadbeat father.
Note that “war” is also a common card game.
Note that this also continues the piracy theme started by the earlier references to Blackbeard and Davy Jones' locker.
“Cuffing” also in the sense of handcuffing, which follows a “bust,” and works in tandem with the drug dealing sub-metaphor.
And, obviously, Village People finishes the thought that YMCA began.
As well as a play on words — making money out of nothing.
Note, in addition, the obvious pun on MC — to “square” them is to herb them, to make them appear foolish.
The Crow itself concerns a vigilante who returns from the dead, accompanied by a flock of crows.