mtg is legendary a card type Magic lead designer announces new coming in “future set” Would the legend rule apply?

Legendary Creature - Wizard Orc Draw (CTRL to add secondary) Finisher Overpowering Attack Freerunning (You may cast this spell for its freerunning cost if you dealt combat damage to a player this turn with an Assassin or commander.) Untap all creatures you control that attacked this turn

This card will likely see most of its play in formats like Brawl, thanks to the longer game time allowing for larger creatures to be played, thus offering more potent uses of Burning Anger

Cast fear into the hearts of your opponents with all 4 Duskmourn: House of Horror Commander DecksMiracle Worker, Death Toll, Jump Scare!, and Endless Punishment

Karlovs a much-coveted commander due to its two synergistic abilities on an insanely cheap body

When this land enters untapped, create a Food token