So small margins probably work because they are often something that is liquid and pretty repeatable
Legendary Creature - Octopus Ninja Shark Creature (CTRL to add secondary) Drain Syr Konrad, the Grim Whenever another creature dies, or a creature card is put into a graveyard from anywhere other than the battlefield, or a creature card leaves your graveyard, Syr Konrad deals 1 damage to each opponent
Interestingly, given the artwork and feeling of the card, Fraxure's listed ability is titled Unnerve, and prevents some Item and Supporter cards of the opponent's from doing any damage to Fraxure
At 14, you can do 10 damage to three targets but also 5 to eight
Inferno Titan can annihilate blockers and just send a lot of burn to face
If you also control a nontoken Baron Bertram Graywater, that one's ability will also trigger, netting you another Vampire Rogue