I somehow managed to get myself out of this. I only had something like 1 maxed level summoner and played it once or twice when my energy reached 50, to not waste any energy.

Then, my other legendary summoners (and the rest of legendary cards) got unlocked and I could have more options. I'll see at the end of the season how much this has cost me in terms of Glint (if it did), because I don't keep a track of the amount of SPS I earn every season.

Anyway, could have been much worse if I didn't have these legendary summoners than got unlocked in 2 days.