Ancientpower- number 1 STAB move
Ominous Wind- no
Silver Wind- With all the Celebis running around, this guy needs a good way to kill it
Flamethrower-pwn steels
Fire Blast-pwn steels x2
Overheat-nice move to blast something hard
Thunderbolt-ok to have
Thunder-if it gets thunderbolt, then it should get thunder as well
Charge Beam-this boosts SpA, so no
Ice Beam-kill grounds and dragons
Blizzard-if it gets Ice Beam, it should get Blizzard
Giga Drain-Awesome move to slay some pokemon
Energy Ball-no need, and only grass types get it anyways
Grass Knot-keep it mostly grass
Focus Blast-lets make Blissey the ultimate counter plz
Focus Punch-same as above, and NO HANDS!
Explosion-only way to kill Blissey, and involves death. So it works out.