Dark Lands Guide
You need to prioritize Damage rather than Health and Agility. Damage stats permanently increase your damage and helps you to kill faster to gain more experience. Agility which also helps you to kill faster but damage is more efficient and more faster. Health is the least prioritize because you can play the game again and again without limits.
Crystals, Mega Crystal and Magnet can help you gain more crystal to use it for other upgrades. Other Skills provides more survivability but in this kind of game, you need to prioritize on getting crystals rather than survive or to get high score.
Same as Stats Allocation and Skills Allocation, we need to prioritize Damage. Swords gives high damage but low cost compared to other inventory "damage vs price" value. Just remember Damage > Agility > Health.
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