Tips for SCH? :)

[Zadocfish]

Alright, been trying it out a little more, reading up, and came up with a new question. Under what circumstance would I ever use Miasma 2? It seems almost completely worthless. Ruin 2 is a straight upgrade to replace Ruin 1, Bio 2 is a great thing to add to the rotation along with Bio 1... But Miasma 2 has a small range for an AOE, doesn't do much damage over time (roughly 1/4th of Miasma 1 per target), and Miasma already turns into an AOE with smart use of Bane... and the sheer difference in damage means it's more useful just spreading Miasma 1 to each enemy one-at-a-time; one casting of Miasma can lead to about 300 total potency, compared to 70 for Miastma 2... so, you'd need to cast it on a minimum of 4 opponents, and recast it much sooner, to get as much damage in. Miasma 2 is Instant, sure, but you still can't do anything in the GDC...

Is there something I'm missing...? It seems like the most worthless level-up spell in the game I've seen so far, being literally worse in almost every way than its first version.