generation: new stratums - clean and pretty

Signed-off-by: mkhropov <mkhropov@gmail.com>
spells: sadly sunstrike works no more with new morphs. Need to overthink it a bit, disabling for now

Signed-off-by: mkhropov <mkhropov@gmail.com>
mana: oops when we have 0 mana sources the world can collapse. Symbolic but fixable

Signed-off-by: mkhropov <mkhropov@gmail.com>