1-cost reroll: hold your level until the 3-star lands

The rule

In a 1-cost reroll line, do not buy XP until your key units hit 3 stars. Every level you take shrinks the share of 1-cost units in your shop.

Lower levels give the highest odds for low-cost units. Leveling early dilutes that pool, so each copy takes more rolls to find.

How to play it

Build toward 50 gold first, then slow roll above 50 so interest keeps paying for the search.

The moment your carries hit 3 stars, flip the switch: spend down and push levels to stabilize.

• No XP buys before the 3-star.
• Slow roll above 50 gold.
• Push levels only after the target is secured.