No Fear (Red)

As an additional cost to play this, banish any number of cards with 6 or more

from your hand. At the beginning of the end phase, return them to your hand.

The next time you would be dealt damage this turn, prevent X of that damage, where X is 2 plus the number of cards banished to play this.

Rulings

From the Heavy Hitters release notes

You cannot banish a card to play No Fear if the card doesn’t have 6 or more before it’s banished. If you have not already banished a 6 or more card this turn, you cannot banish Diabolic Offering as part of playing No Fear because it has 0 when you’re selecting cards to banish.
If a card banished this way is turned face-down, it does not return to your hand during the end phase. Any other remaining face-up cards in the banished zone that were banished this way will return to your hand during the end phase.
If a card banished this way was moved to another non-stack/arena zone, it does not return to your hand during the end phase. Any other remaining face-up cards in the banished zone that were banished this way will return to your hand during the end phase.
If you don’t banish any cards to play this, X = 2, and this will prevent 2 of the next damage you’d be dealt this turn.
This prevents damage from a single event of damage. Any leftover prevention amount does not carry over to another event of damage.