Glitchy
I was able to finish all available levels, without purchasing any add ones. This game is fairly glitchy throughout. Ads would sometimes unpredictably pop up, prompting inadvertent activation of the ad, but not too overwhelming - probably acceptable for a free app. Oftentimes would require restarting app because of glitches while equipping cards, and seldomly during gameplay (although this occurred several times during gameplay). Gameplay progression seemed a little uneven (got stuck for sometime on middle boss sword lady), whereas later bosses less problematic. After finishing, acquired mercenaries lost all equipment options (glitch). Like the art, gameplay generally, but still needs a lot of work on glitches throughout the game.
Leemurz about
SoulSpark- Eternal Mana Strike