The deploy picker (Army tab → click a slot). Problems with today's frame: two full rows of filter chips outrank the actual content, the list column goes empty when a slot type has 1–2 owned pieces (your pawn roster today), the card floats unanchored on the right, and the footer mixes a status sentence with the actions. All four directions below keep the fixed-frame contract (no resizing on click — regions update in place) and the v3 MTG card.
Scenario is identical everywhere: slot D2 · Pawn, currently held by Standard Pawn (7/8 fielded), with 5 pawn-type candidates — Standard Pawn and Hale the Recruit are real; Emberling Scout, Tideson Acolyte, Verdant Squire are mocked to judge layout at moderate fill. Every variant is clickable — including clicking Standard Pawn to see the "already on this square" state from your screenshot.
Kept for honest comparison — same content as the redesigns below. Note the chip rows consuming ~90px above the fold, the 400px-tall list for 5 rows, and the card hanging without an anchor.
The card becomes the picker. One hero card on a spotlight stage, prev/next arrows cycle candidates, and the list demotes to a horizontal shelf of mini-cards along the bottom. Filters collapse from 12 chips to three dropdowns. Sparse state reads fine: one candidate = one shelf card, the stage still composes. Steal-worthy on its own even if you pick another direction.
Same bones as today, but the frame shrinks to the content's true size. 740px wide, 46px ledger rows with right-aligned stat triplets and a copies tick, one toolbar row of dropdowns, and the card rail carries stat deltas vs the current occupant. Dead space below short lists becomes an engraved crest + a one-line availability summary instead of a void. The "professional" option.
Makes the swap itself the headline. A permanent top strip reads "ON D2 NOW → REPLACING WITH" with stat-delta chips between the two mini-cards (green/red, computed live). Bench list on the left, full card inspection on the right, and the footer gains an explicit KEEP CURRENT action so "leave it as is" is a first-class choice instead of a buried footer sentence. Deltas also work when the current occupant is an unscouted/unknown piece in PvP later.
No list at all — the slot opens a binder page of card faces. Every candidate is a real (mini) MTG-v3 card; empty slots render as dashed sleeves, so a 1-piece roster looks like the start of a collection rather than a broken table. Selected card gets the gold seal; fielded-out cards grey out with a FIELDED band. Least "UI", most "my collection". Risk: tallest fixed frame of the four.