If its red, you may cast it this turn, which does not allow you to put lands onto the battlefield, because a) you do not cast lands and b), even if you did, lands do not have colors despite producing colored mana
Each one has a 'passive' effect that shapes gameplay, and a chaos effect that can trigger when the Planar die is rolled
In most cases, this just causes nothing to happen
I was killed a turn or two later by another player and I was really just happy to have found a way to cheat death once and kill someone before the game was over
If you do manage to defeat the Battle, it transforms into a four-power copy of a Creature in a graveyard, which is a massive swing
Number 397 Language English Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Pioneer, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Standard Rulings (7/23/2021) The "otherwise" in the last ability refers to whether or not you put it onto the battlefield, not whether or not it's an artifact card