dice are d600, roll low to hit/crit/effect
Step 1:

sappy seed
-10 en
506 crit no
(9 + 10 - 7) = 12 damage

is seeded (3t)

bubble beam
-5 en
112 crit no
98 effect no
(7 + 7 + 3 - 12) * 1.5 = 8 damage

is drained for 3
Step 2:

covet
-4 en
93 crit no
(6 + 10 - 7) = 9 damage

is stolen

bubble beam
-5 en
46 crit no
559 effect no
(7 + 7 - 12) * 1.5 = 3 damage

is drained for 3
Step 3:

prep skull bash
+1 def (2t)

bubble beam
-5 en
442 crit no
503 effect no
(7 + 7 - 12) * 1.5 = 3 damage

skull bash
-8 en
500 crit no
(13 + 10 + 3 - 7) = 19 damage

takes 2

is drained for 3