Bullet Shield Character Rework:
Changed how the power works: hold r-click to summon the shield, draining mana over time
Created unique sprites and animations for the character
Replaced the old shield sprite with a particle based wall of fire appearance (with lighting and SFX)
Other:
Fixed being unable to use a power even if you have enough mana, due to floating point precision errors
Reduced Lightning Power's cost to 60% (used to cost 100% of the mana bar)
Added some notches to the mana bar