Shard Toss

Strategy and Synergy
The spell works best with Hazel, since the effect of procs on cast, making the spell 80  for 1.

The spell isn't the best thing outside of Hazel, since it is heavily based on RNG.

A trick with the spell is to go for a B (SummonHP), since it allows the crystals to explode twice. That can only happen because the explosion the crystal make deals 50 damage to everything around them. D (Double) is also a good option, especially with Hazel, since it makes the the spell a 160 for 2. This also lowers the RNG, since it has a chance to almost hit every tile. The problem is, that the crystals can land on the fields already with a crystal on, making it impossible for the 2nd crystal to spawn.