Kaho, Minamo Historian is a uncommon Legendary Creature — Human Wizard card from Commander Masters (CMM), collector number 101. Current market price: $0.18 (foil $0.35), TCGplayer market prices via Scryfall.
When Kaho enters, search your library for up to three instant cards, exile them, then shuffle. {X}, {T}: You may cast a spell with mana value X from among cards exiled with Kaho without paying its mana cost.