Commander damage is the most common way to eliminate opponents, but regular creature beatdowns can often get you across the line, too
Thoughtpicker Witch While most people with sac outlets will want those outlets to be free, for one mana you get to actively hinder your opponents game plan with this wonderful one drop wizard
OP-15 finally delivers them
C Common Elemental HERO Ocean X WATER Level 4 [ WarriorEffect ] ATK 1500 DEF 1200 Once per turn, during your Standby Phase: You can target 1 "HERO" monster you control or in your Graveyard
The key component here is unblocked damage, so if your opponent can force your creatures to block, and their creature has trample, youll take the full amount of trample damage
Other themes should be tweaked with this much care