Forgotten Sanctuary

The Forgotten Sanctuary is the last Training Area (for now) that exists in Ninja Legends 2. It has a Element Multiplier by x3, Coin Multiplier by x5 and you get +8 Shards per 3 Seconds (stacks with Evolve and Pet Stats). It is located just off to the side of the Planet Elemental but you need to jump through the coin boost rings behind the portal on the Planet and avoid the Turret that guards the Training Area.