Macro transactions. RNG style of merger on top of random deleting of half your team by bosses, kept pay to win PVP in check, but definitely added to annoyances. Even with that being said, I enjoyed the game & even did PVP. They removed normal co-op, which made earning things slower, & less casual. PVE until out of keys then pay, wait, or PVP. Dungeon locked if incomplete. Added co-op back after neg comments, but only friends & clan. Neither of those are on to play. Stay away from this.