I think this card is best in a light/dark or fire/water decks, but it's interesting to see multiple synergies with this card.
I can't even begin to think of the countless element splashes with this card.
Of course, I don't think it's OP considering adding 6 in your deck will cobweb it but putting less may disrupt the splash cycle.
In fact, it could do a little less so people would want to invest in it...