Merlin's Magic Respins Slot by Light & Wonder

The SuperBet wager is the piece that defines this one, and it works differently from a normal feature bet. Switching it on, across five levels, is the only way to make the Wild Respins feature available, and each level up adds another respin. With SuperBet off you simply play a flat 50-line slot with no respin feature at all, so the decision to raise your stake is also the decision to turn the main attraction on.

When Wild Respins fire, Merlin steps in beside the reels and turns symbols wild. If a full stack of Merlin wilds covers an entire reel, that reel locks and the others spin again, and any new full stack formed during the sequence stays held for the spins that remain. Land five full Merlin reels and the whole win is paid, then the same winning positions are respun again. The number of respins you get ties straight back to the SuperBet level you chose, one through five.

There's a separate route through the Cauldron scatter, which lands on the middle three reels. Three of them award seven free games, and during those Merlin keeps transforming symbols and stacks into wilds, with the round able to retrigger. It's a cleaner, scatter-driven version of the same wild-stacking idea.

The setting is Merlin's tower, all deep purple and gold with candlelit shelves of potions, spellbooks and brass telescopes behind the grid, the green-robed wizard standing to the left. For another take on the same wild-heavy magic theme, the catalogue groups the rest of the wizard-set respins titles together.