Damage Gardna, its a hand trap

[I Hate Snatch Steal]

 

You can discard this card (quick effect); This turn, each monster you control cannot be destroyed by battle or card effect once each. Also you take half battle damage this turn. During either player's Battle Step, while an attack is occurring: You can banish this card from your Graveyard; negate the attack. You can only use the effect of "Damage Gardna" once per Duel.

 

OCG reference for the 2nd effect:

http://yugioh.wikia.com/wiki/Bacon_Saver

 

Rulings Notes:

- "This turn, each monster you control cannot be destroyed by battle or card effect once each". means that the monster won't be destroyed by battle once that turn and by card effects once that turn.

- You cannot activate any of of Damage Gardna's effects during the damage step

 

I decided to update the card from this contest to make it better in today's meta:

https://forum.yugiohcardmaker.net/topic/6931-create-the-art-for-this-card-damage-guardna-now-open-til-82307-finished/