The Battlefield

Peer into the Abyss

$2.24

Underworld Dreams

$2.16

AI DraftFeb 26, 2026

Peer into the Abyss + Underworld Dreams

Overview

When Peer into the Abyss resolves targeting a player, that player puts into their hand a number of cards equal to half their library (rounded up) and loses half their life (rounded up) as part of the same effect. Because Peer uses the word “draw,” Underworld Dreams’ ability triggers once for each card drawn this way (Ruling [2004-10-04]). If the targeted player has no cards and attempts to draw, they will lose the game the next time a player would receive priority (120.4, 704.5b). Rounding of cards drawn and life lost is governed by Ruling [2020-06-23].

Step 1

Player casts Peer into the Abyss targeting Player A while Opponent B controls Underworld Dreams; Peer resolves and computes N = number of cards in Player A's library, then calculates D = ceil(N/2) cards to draw and L = ceil(N/2) life to lose [Ruling 2020-06-23] .

Step 2

Player A then draws D cards as part of the resolution of Peer into the Abyss; because these are draws (the effect uses the word “draw”), each individual card draw causes Underworld Dreams to trigger once, for a total of D triggers [Ruling 2004-10-04] .

Step 3

After the draws are performed (and any replacement effects for draws are applied as relevant) the life loss of L is applied as part of Peer’s effect; the life lost is rounded up per Ruling [2020-06-23] .

Step 4

The Underworld Dreams triggers are put on the stack after Peer finishes resolving (normal triggered-ability handling) and will each resolve in turn, dealing 1 damage to the player for each trigger .

Step 5

State-based actions are checked whenever a player would receive priority; if Player A has 0 or less life after the life loss and/or the Underworld Dreams triggers, they lose the game .

Step 6

If Player A attempted to draw and the library was empty, Player A would lose the game the next time a player would receive priority for attempting to draw from an empty library .

Resolution

When Peer into the Abyss resolves, the target player draws ceil(N/2) cards (where N is the number of cards in their library) and loses ceil(N/2) life; Underworld Dreams triggers once for each card drawn and will deal 1 damage per trigger to that player [Ruling 2004-10-04] [Ruling 2020-06-23] . If the draw would require drawing from an empty library, the game will check state-based actions and that player will lose for attempting to draw from an empty library .

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