I really don't like 10 SUPER poison. I think that something to trigger more death effects would be better. I suggest the following:
Unupped
15
Destroy all creatures on the field. Consumes all remaining
quanta.
Upped
12
Destroy all creatures on the field. Consumes all remaining
quanta.
or
15
Destroy all creatures on the field (even burrowed/immortal). Consumes all remaining
quanta.
If OP:
- Either destroys them during the next turn (so they can respond and do more damage), or gives the opposing player and all creatures a large amount of poison.
If UP:
Give the opponent a poison counter for every creature destroyed (either on their field or overall)
These would be very powerful with bonewall, soul catcher, etc. Without ending the game as quick as the current effect does.