Your hand is filled with copies of the weapon. However, playing counts as playing a weapon, not a creature. So you cant go Fractal-Arsenic or anything. Max number of weapons you can possibly have on the field and weapon slot at a time is 7.
False. the maximum number you can possibly have on the field and in the weapon slot is 13. Parallel universes are amazing in flying weapons decks 
False. the maximum number you can have on the field and weapon slot is 24.
1 Flying Weapon + Fractal + Arsenic = 1
5 Flying Weapon + 6 Arsenic = 7
6 PU = 13
6 Pandemonium + Hax RNG = 24
The last part is ridiculous, though. However, you can kill some Arsenics and end up PUing more than you lose.
