Kanji, Favor Granter

When Kanji, Favor Granter enters the battlefield, each player reveals the top X cards of their
library, where X is equal to the amount of mana spent to cast Kanji. Each player may put a card they own from among them into their hand. For each player who does this, you may put up to
that many cards from among them you own into your hand. Then each player puts all other
revealed cards they own this