2x rare, super rare, or legendary cards
At first glance, getting to play two different types of cards from the top of your library and double their triggers seems amazing
For those formats, look to Atraxa, Grand Unifier, who has vigilance and deathtouch on top of flying and lifelink, and an almost-as-powerful card draw effect
If you want to pay 7 life to activate Griselbrand, but your life total is 6, you don't have enough life to pay the cost
Drag to the Roots While low mana value removal is amazing, flexible removal that can hit any target can also be really good
Its not always easy to tell the difference between a character, item, and action at a glance, and youll have to squint to read the cards thin middle text bar to figure it out