Elementum. Battle of elements.

This puzzle is beyond everything! It captures, fascinates, and annoys at the same time. Are you able to beat chaos and overcome inevitability of contingency? Can you pacify the endless struggle of elements and win this battle?
You have to fill in the playing field with the cards of the same element. It is not so easy to do as all the four elements are permanently struggling. Water floods ground. Air evaporates water and destroys ground. Fire burns air, while water and ground extinguish fire. Remember these rules. They will help you to solve the puzzle.
Struggle of elements would last endlessly if it had not been for the fifth element – magic crystal. Joining together with any of the four elements the crystal boosts it and super exalts it over the rest. You will get the magic crystals as bonuses; also you will have an opportunity to buy them.
Two play modes are available. “Mission” play consists of 37 battles; each of them is more complicated than the previous one. “Arcade” play gives an opportunity to battle endlessly on a small (3 × 3) or large (4 × 4) playing field.