Cleric main is currently overpowered. You only need to constantly pump in a bunch of strength and some HP and you pretty much can solo the entire game.
It says that you should aim for the biggest boxes but that is actually not a good idea. Several tiny cells are actually better than a large cell and are easier to capture as well. What you need to do it expand very aggressively towards each tiny cell, sending just enough to outnumber the neutral cells. Let the AI waste their force to try to capture the large cells and you will take over its hard work. If you see the enemy having a dangerously low amount of units in a large cell, try to capture that. Remember that the theme to win is to attack attack attack.
(To dxrules63)
This only work if you are soloing Sinjid. You can also opt to get block as well. The good thing about this is he cannot use any other techniques because he doesn't have any focus left. However, soloing takes longer to defeat but less frustrating.
(To wizzyg)
Piercing gives you a higher critical damage and higher critical chances. The extra strength will add a decent amount of damage to those skill that uses it. I would say piercing.
Interesting game but gets repetitive rather quickly. Most people that played bejewel will feel at home but there are much less varieties here.
Btw if you are having problems, the key is to perform combos and denying your enemy's attack by matching their attacks for your defense.