Leovold + careful study or brainstorm

[bobomb]

With Leovold in play. Can an opponent cast a careful study, fail to draw cards, but still be able to discard?

Also, with Leovold in play. Can an opponent brainstorm, fail to draw, but still place 2 cards back on the library?

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[Fox]

Yes, they have to perform as much of the text as possible with either cantrip (discard 2 or put 2 back). The more common occurrence would probably be a proactive prison approach where the Leovold player runs Geier Reach Sanitarium or Cephalid Coliseum so opponent either never gets to draw and keep a card on their turn (Geier on upkeep) or draw 0-1, discard 3 (Coliseum).

[bobomb]

Yes, they have to perform as much of the text as possible with either cantrip (discard 2 or put 2 back). The more common occurrence would probably be a proactive prison approach where the Leovold player runs Geier Reach Sanitarium or Cephalid Coliseum so opponent either never gets to draw and keep a card on their turn (Geier on upkeep) or draw 0-1, discard 3 (Coliseum).

Thanks, that's what I thought.

I was playing UB Reanimator vs 4c Control. Leovold was in play, I careful studied to bin a fatty and we weren't sure how that should play out.

[Claymore]

What about Leovold vs Notion Thief? I'm assuming the Notion Thief would not allow Leovold's controller to draw extra cards, and Levold would stop Notion Thief's controller from drawing the stolen Leovold trigger - effectively cancel each other out.

[icedagger]

What about Leovold vs Notion Thief? I'm assuming the Notion Thief would not allow Leovold's controller to draw extra cards, and Levold would stop Notion Thief's controller from drawing the stolen Leovold trigger - effectively cancel each other out.

Not quite. In most cases they do cancel out, but Notion Thief would still be able to steal a single draw from under a Leovold as long as Notion Thief's controller hasn't yet drawn a card during the current turn.

[Misplayer]

How about my Leovold vs my opponent's Sylvan Library? Opponent verbally indicates they are choosing to draw with Library. What happens? I've received two different rulings at two different events...