777 Surge

The premium symbols consist of single, double and triple flaming 7s, and they pay 5, 15 or 30 x your stake for 5 of a kind wins. Any combo of 7 symbols pays 2.5x your stake for the same, while the Wild symbol pays 30x your stake for 5-oak. The wild also steps in for regular pay symbols to help complete winning combos, like wilds usually do.