Teferi, Solver of Puzzles

Teferi, Solver of Puzzles can be your commander.
When one ore more players would draw one or more cards, put a loyalty counter on a Teferi planeswalker.
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-1: Each player puts the cards in their hand on the bottom of their library in any order, then draws that many cards plus one.
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-10: You get an emblem: You may play spells as tough they were in your hand as long you control a Teferi Planeswalker.