Abzan Whenever you attack, put a +1/+1 counter on target attacking creature
from the most efficiently costed removal to the most thorough solutions, if you need a problem on board solved, white can handle it
Sure, you can jam the nine Nazgul in there (if you can find them!), but the reason people love this Commander is because it lets you play cheap instants and sorceries that would otherwise be medium at best and card disadvantage at worst
For a just a 2-mana investment, you unlock a 1/1 body with a great enters-the-battlefield trigger
A combo piece that can double up as a threat or a card draw tool is always going to be an interesting card
Instant Color tag templates(None) Plumb the Forbidden As an additional cost to cast this spell, you may sacrifice one or more creatures