It's impossible to summon a legendary skill stone. Oh and when you finally get one, it's a duplicate or for a monster that is so under leveled, it's useless. Runes are impossible to level up. You can't farm mana stones to level up your monsters or runes. Your monsters stay under leveled when top players have all 15+. It's impossible to move up in ranked. Siege mode hell is literally only for people with level 15+ monsters. This game is officially pay to win and is now impossible to enjoy.