Katia projects the thorn front will cover almost the entire map by floor collapse and funnel survivors into the southeast high-elf castle.
Using the expansion rate and likely origin points, Katia estimates the Bramble will consume the hidden changeling village before the last day. The timing appears deliberately calibrated so the wall finishes covering the map as the floor timer expires.
Its geometry pushes every crawler, NPC, and ejected hunter toward the southeast corner. The high elves are likely to beat the branches away from their own territory or use a castle artifact, making their fortress the final gathering point and Masquerade venue.
A moving continental front of thorn wall converging on the map's southeast corner.
The spell is not only punishment but an engineered funnel for the floor finale.