Kaho, Minamo Historian

Legendary Creature - Human Wizard 2/2, 2UU (4)
When Kaho, Minamo Historian enters the battlefield, search your library for up to three instant cards and exile them. Then shuffle your library.
{X}, {T}: You may cast a card with converted mana cost X exiled with Kaho without paying its mana cost.¹
Illus. Greg Staples

Gatherer Card Rulings [Nov 2009]

• 6/1/2005: If an effect takes a card Kaho exiled out of the Exile zone, then you can't use Kaho's ability to cast that card.
• 6/1/2005: If another player gains control of Kaho, that player may cast any of the cards exiled with Kaho's ability.
• 6/1/2005: Kaho's activated ability refers only to cards exiled by its triggered ability. If another effect exiled the cards, you won't be able to use Kaho to cast those cards.

Format Legality	Legal in Vintage, Legacy, Extended Banned in Standard
Printings (1/8)	Saviors of Kamigawa (Rare)