So, I was playing in Elements, and accidentally I used 2 SN, and got a -7/5 singularity. This singularity killed me, the enemy just stayed and watched to how I die. Singularity is too OP, because it has A LOT of abilities and if you don't kill it in the first turn, you die, because it fills your field!!! My enemy trolled me with that singularity and laughed to me!!!
However, there is a story where my oponent summoned a singularity and I won, so I suppose it's a good card after all hehe.