
Partner withPartner withWhen this enters, target player may put Mothers Yamazaki into their hand from their library, then shuffle. A Commander deck can include two of this card, and they can be your commanders. itself (When this enters, target player may put Mothers Yamazaki into their hand from their library, then shuffle. A Commander deck can include two of this card, and they can be your commanders.)
As long as you control exactly two permanents named Mothers Yamazaki, the "legend rulelegend ruleIf you control two or more legendary permanents with the same name, you keep one and put the rest into the graveyard." doesn't apply to them, and Samurai you control get +2/+2 and have vigilance and haste.
Hover an underlined rule to see what it means.
Read from the rules text. A card that enables a keyword makes or is the thing; a card that rewards it gets better when you have it. Two cards interact when one enables what the other rewards.