Does This Work, Or Is My Math Too NA
Champion: Jayce
AD Level 18: 117.5 Mana Level 18: 986
The God Build:

Total AD: 155 + Jayce's 117.5 = 232.5
Trinity Force gives +200%. 117.5 + 200% = 235 Bonus damage
Duskblade gives 200 damage
232.5 + 200 + 235 = 667.5 damage on one auto
Manamune gives 1000 mana, +2% mana as AD, +3% damage mana x2. 3 Manamunes = 3000 mana
3000 + 986 + 250 (Trinity) + 250 (Mana Flow) = 4486 mana
4486 - 2% = 90
4486 - 3% = 134.5 x 2 = 269
667.5 + 90 + 269 = 1026.5 damage for 1 auto
30% critical strike from Phantom dancer gives 100% bonus damage.
1026.5 + 100% = 2052 damage for 1 Critical strike auto
Jayce's W gives +10% damage on autos.
2052 + 10% = 2257 Damage for 1 critical strike duskblade trinity force wombo combod W max power.
So with that whole build, you do 2257 on one auto with all the items/abilities going off right. Unless duskblade/manamune/Trinity doesnt critically strike.