The Energy refill have been a great tool for grinding fighters to their max levels also obtaining it isn't that hard since you could get them from gifts and as rewards in deployments.The only downside it has in my opinion is that it runs out fast especially if you're grinding level 50 Diamonds to level 60.
My suggestion is to have a boost that would cut the Energy Recovery speed in half. This would be beneficial to new players who are having trouble leveling up their fighters because it runs out of energy within a few fights and high level players who grind their fighters in Peacock's Origin Story.
Having this kind of boost added into the game would make grinding fighters much faster especially if it is paired with an Exp Boost.
My suggestion is to have a boost that would cut the Energy Recovery speed in half. This would be beneficial to new players who are having trouble leveling up their fighters because it runs out of energy within a few fights and high level players who grind their fighters in Peacock's Origin Story.
Having this kind of boost added into the game would make grinding fighters much faster especially if it is paired with an Exp Boost.