invasion booster box YuGiOh Hidden Arsenal 5 Steelswarm 24 Packs Konami Onslaught and Legions Opening an Invasion Booster Box

Delayed Blast Fireball will only deal 2 damage to all your enemies creatures

When they run out, you can no longer attack or defend just struggle

MTG Arena: State of the Game Adventures in the Forgotten Realms You Meet in a Tavern Greetings

In the above photo, the non-error version (sleeved) is just under the error card, for comparison purposes

I found a ton of lands/artifacts that fit the bill, but the most interesting results were these two white cards: These obscure old-school cards are rare examples of White doing direct damage

So long as it's on the battlefield, all attacking creatures will not take any damage (combat damage or otherwise)