Xanathar, Guild Kingpin Secrets of Strixhaven that player adds one mana

that player adds one mana of any type that land produced

instead look at the top three cards of your library

those creatures attack each combat if able and attack a player other than you if able

{T}: Create a 1/1 green Elf Warrior creature token

} {T}: Another target creature you control gains protection from colorless or from the color of your choice until end of turn

Xanathar, Guild Kingpin Secrets of Strixhaven that player adds one manaAt the beginning of your upkeep, choose target opponent. Until end of turn, that player can't cast spells, you may look at the top card of their library any time, you may play the top card of their library, and you may spend mana as though it were mana of any color to cast spells this way.