The Disciple of Nissa [Unknown Event] Water [-30] add one mana of any

add one mana of any color

If a legendary permanent or an artifact entering or leaving the battlefield causes a triggered ability of a permanent you control to trigger

and your ability to sneak

You can only use this effect of "Mimighoul Dungeon" once per turn

The Disciple of Nissa [Unknown Event] Water [-30] add one mana of anySet: Unknown Event Type: Legendary Creature Elf Wizard Rarity: Rare Cost: {2}{G} Whenever the Disciple of Nissa attacks, you may pay {X}{X}{X}{G}{G}. When you do, create X tokens that are copies of different Nissa planeswalkers chosen at random. They each enter with an additional loyalty counter. (There are currently eleven. Yes, Nissa, Sage Animist counts. Perhaps look up the list and roll a D20?)