I find problems with the current teir requirement system. Basically it is this, you can literally buy your way into teir 3 and not have a clue how to play... this just winds up costing people time and energy when they get stuck with a player who has done this.

There is a simple fix, in my opinion, to this. Make it so you have to defeat a boss from the previous teir. This means for teir 2 you would have to beat snarbolax at least once, and for teir 3 you would have to beat either the royal jelly or romulus twins at least once.

This is a simple requirement that anyone who plays the game properly will achieve long before they reach the star requirement for the next teir but means that the players who come into the game and buys their way to 5* gear will have to learn how to defeat a boss before coming in and trying to take on Lord Vanaduke.

I understand this won't mean that everyone in the 3rd teir will be a pro, most people it takes at least 5-10 runs before they know the ins and outs of a boss, but it does mean you get way fewer people using piercing weapons against JK or wearing armor with fire debuffs against Vanaduke.