Collect Ring

Strategy and Synergy
Best used in a Kunai deck. When kept in a spell slot while casting the spells in the other slots like normal, it will continue generating. When it's the last spell in the deck, it shall be casted.

It's extremely advised to upgrade this spell and get the upgrade K (KunaiPlus). If you try to upgrade it and KunaiPlus is not there to be picked then you can ignore the other upgrades (so the upgrade cost will still be just 1) and try again whenever you can.