Expandra Brim

Hold to grow a thermal isotherm ring, then release to lock its radius against a target heat contour. Pulses run through the expansion—releasing in a valley often hugs the line more closely. A short freeze skill in the corner can pause the field on cooldown. Poor locks score low; a run of weak fits ends the session. Ellipses and faster pulses arrive later. Expandra Brim reads like false-color heat: grow, wait for the dip, seal the brim.