The Battlefield

Karmic Guide
Reveillark
Viscera Seer
AI DraftFeb 26, 2026

Karmic Guide + Reveillark + Viscera Seer

Overview
If you have Reveillark on the battlefield and Karmic Guide and Viscera Seer in your graveyard, you can activate Viscera Seer by sacrificing Reveillark as the cost; Reveillark leaving the battlefield will trigger, returning Karmic Guide and Viscera Seer to the battlefield, Karmic Guide's enter-the-battlefield trigger will return Reveillark from the graveyard, and then the Viscera Seer activation will resolve to Scry 1, allowing you to repeat the loop. The loop relies on Reveillark's leave-the-battlefield trigger and Karmic Guide's enter-the-battlefield trigger interacting with Viscera Seer's activated ability; triggered abilities are put on the stack and resolve as described by the rules for triggered abilities and priority .
Step 1
Activate Viscera Seer’s ability by paying its activation cost, which includes sacrificing a creature you control; sacrifice Reveillark as that cost (the sacrifice causes Reveillark to leave the battlefield when you pay the cost) .
Step 2
When Reveillark leaves the battlefield as part of paying the cost, its triggered ability (“When this creature leaves the battlefield...”) triggers and is put on the stack as a triggered ability waiting to be put on the stack .
Step 3
Because you paid costs and activated Viscera Seer, the activated ability is on the stack; triggered abilities caused by Reveillark leaving are also put onto the stack and will resolve before or above the still-waiting activated ability according to normal triggered-ability ordering rules .
Step 4
The Reveillark leave-the-battlefield triggered ability resolves and returns up to two target creature cards with power 2 or less from your graveyard to the battlefield (for the loop you target Karmic Guide and Viscera Seer, assuming both are legal targets) [Ruling 2018-12-07].
Step 5
As Karmic Guide enters the battlefield from that effect, its ETB trigger (“When this creature enters, return target creature card from your graveyard to the battlefield.”) triggers and is put on the stack .
Step 6
When the Karmic Guide ETB trigger resolves, you return Reveillark from your graveyard to the battlefield (assuming Reveillark is a legal target for that trigger at resolution), so Reveillark reappears on the battlefield.
Step 7
After those triggered abilities resolve, the previously activated Viscera Seer ability (which was waiting under those triggers) now resolves and you Scry 1, because the sacrifice for its cost was already paid earlier in the activation.
Step 8
You now have Reveillark and Viscera Seer on the battlefield and Karmic Guide on the battlefield; you can repeat the sequence by activating Viscera Seer again and sacrificing Reveillark as the cost to produce another Scry 1, repeating the cycle as long as the loop remains valid.
Resolution
You can make an effectively infinite loop that produces one Scry 1 per cycle by repeatedly sacrificing Reveillark to Viscera Seer, because Sacrificing Reveillark as the activation cost causes Reveillark to leave the battlefield and trigger its leave-the-battlefield ability, that ability returns Karmic Guide and Viscera Seer (both of which are legitimate targets if they have power 2 or less), Karmic Guide's ETB then returns Reveillark, and finally the Viscera Seer activation resolves to Scry 1; this sequence can be repeated as long as the necessary cards are returned and no replacement/continuous effects stop those returns [Ruling 2018-12-07] .
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