100% MS + Momentum (5)+ Adventurer (5) just means 50% DMG Increase from momentum and 37.5% increase from Adventurer . Please note that the Adventurer helped reach the 100% MS but still adds extra DMG . Achieve that 100% MS any way you like.
I did it by doing the following: Coat having 25% MS+ 30 hero point for another 30% MS + adventurer + Stealth and hero point. It goes a bit over 100% but we reach that high damage and even without stealth, 87.5% MS for 43.75% DMG at momentum (5) and you still get 37.5% DMG from Adventurer (5) so that means 1.4375×1.375= ×1.9765625 (or 97% increased DMG!) .
That means if your skill did 1B damage , 1 billion ×1.5×1.375 = 2.06B damage.
1.5×1.375= ×2.06 so you increase your DMG by 106%!
That's not all though but that's how potent Adventurer+ Momentum can be. If it was old momentum , it would actually be 2×1.375= 2.75 or 175% increased DMG! However even with the momentum we have now, adventurer is still OP when using momentum after you collect gold.