Burn: Wait, you can exclude a certain type of monster from an effect? Then can you exclude amphibious creatures from an UW-only spell? That would 95% of the effect of an aquatic-only spell, no? You could name the spell 'Sailor's Revenge', in that case.
Jim: Ah, no, I did see your spell, but I think I saw mine from a flavor perspective, while yours is more from a mechanical perspective. Sailor's Death uses Water to suffocate land units; your spell uses Earth to suffocate water units. Same effect. Mine was more of a literal inversion of the effect. Sailor's Death turns air into water. My spell turns water into air.