Viking: Battle for Asgard/Purchasables

Runes
Runes are elemental powers that give Skarin the ability to enhance his weapon and his allies weapons with the element of choice. This power can only be unleashed if the power bar is at a significant level, and while the effects exist, the power bar will be drained until it is empty. Once enabled, elemental powers cannot be stopped until the bar is empty! There are three runes:
 * Fire Rune.
 * Ice Rune.
 * Lightning Rune.

Battle Items
There are three items that can be used during battle: throwing axes, health potions, and fire potions.

Throwing axes are very powerful ranged weapons that cannot be aimed vertically. The problem with this is they are not useful against enemies located above or below you, and is harder to achieve a hit with. However, they much more powerful than Skarin's normal weapons and thus using them properly can give players the upper hand in battle. They are not useful in large scale assaults, since Skarin can attack multiple targets, collect orbs, and unleash elemental powers while in melee combat.
 * Throwing Axes

Maps
Maps are permanent upgrades to the minimap. Each one makes a specific object type appear on the map as a yellow dot. The three maps are:
 * Gold map: all gold sacks appear on the minimap.
 * Urn map: all urns appear on the minimap.
 * Treasure Chest map: all treasure chests appear on the minimap.

The only problem with purchasing all three maps is that you cannot distinguish one object type from another when looking at the minimap.