Gold
Don't get me wrong, I love how the tiger 4 basic and class catalysts have become easier to acquire withthe higher AQ rewards, but it has presented a problem. Because you cannot sell these, so they are disappearing if not used. Would use them but the amountof gold it takes to rank up 5 star champions is way too high. 5 * champs are the only ones worth ranking up since the 6 star champions were introduced. Really why bother with 4star champions anymore?? I can't spend all day in the arenas and can't sell my teir 4 catalysts for big gold or other prizes. NEED GOLD EVENTS MORE OFTEN, OR LET US SELL OUR TEIR 4 CLASS AND REGULAR CATALYSTS FOR BIG GOLD. DON'T HOLD US HOSTAGE TO USE THEM. Thank you