In this archetype, Vivi Ornitier can immediately grow into a massive threat by chaining zero-cost artifacts
Ulvenwald Behemoth is an 8/8 with trample and haste that grants all of your other creatures +1/+1 and trample and haste
As an added ability, at the beginning of combat on your turn, a target villain you control gains menace until the end of the turn, and that card connives
Illuminor Szeras is the best option if you want to shift the focus of the precon towards a Sacrifice / Aristocrats angle: he functions as a fantastic sacrifice outlet, generating tons of mana while getting those sweet death triggers and putting bodies in the graveyard
You can't change the original division of damage
This also allowed Rogues to do more than just ping your opponents' health until they were ten life points lower than they were six turns ago, adding spell steal mechanics and potential shenanigans that opened the flood gates for combos