Mana Convergence: Lower Mana Cost

This spell acts as AMA's counter but lets break it down.
- Song form (requires focus)
- Only takes a Gnarl Staff to break it
- Similar regs to AMA
- Costs more mana than AMA.

Lowering the mana cost won't make this spell 100% better, but will give Jala a little boost.
Fixed space
Merge pull request #56 from tsShergill/patch-9

Mana Convergence: Lower Mana Cost