Number Soul

MegaMan.EXE performs Double Soul with NumberMan.EXE by sacrificing a Plus Battle Chip (like Atk+10) in both MegaMan Battle Network 4 and MegaMan Battle Network 5. MegaMan gets 10 chips in the selection screen, and +10 attack for neutral element chips. It's not too good in the beginning, but with a couple of Atk+1 programs from Navi Customizer and some Buster Ups Battle Chips, the power really adds up.
 * Charge Shot: Dice Bomb (This is rolled into the enemy area, and after a bit of time, explodes, covering a 3x3 area. The power is equivalent to the number on the dice x10. In MMBN5, the multiplier increases by 5 for each additional Buster level.)
 * Weakness: Charge Shot takes some time to detonate, and is too dependent on the die roll.