Notion Thief

Flash
If an opponent would draw a card except the first one they draw in each of their draw steps, instead that player skips that draw and you draw a card.

Pioneer Masters

"All these childhood memories are getting in the way of the vault codes."

Special Guests

"That's your tone, is it? Change it, or we'll change it for you. You little folk are getting too uppish."

Tales of Middle-earth Commander

Zendikar Rising Commander

Masters 25

Flash
If an opponent would draw a card except the first one he or she draws in each of his or her draw steps, instead that player skips that draw and you draw a card.

If an opponent is instructed to draw a card then discard a card, and Notion Thief causes you to draw a card instead, that opponent still discards a card. The same is true of any other actions that opponent is instructed to do.

If two or more players each control a Notion Thief and a player would draw a card other than the first one in their draw step, that player chooses one of the applicable Notion Thief effects to apply. Then the player whose Notion Thief's effect was chosen repeats this process among the remaining Notion Thief effects, and so on, until there are no more possible such effects to apply. Each effect can be applied to the card draw only once this way.

The above procedure means that if each player in a two-player game controls a Notion Thief and one would draw a card, it really will be that player who draws a card.