How do I calculate the number of greydwarf eyes for portal crafting?

In Valheim, portals are essential for fast travel across the vast world, and crafting them requires specific resources, including greydwarf eyes. Greydwarf eyes are a common drop from greydwarfs, which are small, hostile creatures found in the Black Forest biome. To calculate the number of greydwarf eyes needed for portal crafting, you must first understand the crafting requirements and the drop rates of these items.\n\nTo craft a single portal, you need 10 greydwarf eyes, 20 fine wood, and 2 surtling cores. Fine wood is obtained by chopping down birch or oak trees in the Meadows or Black Forest, while surtling cores are found in Burial Chambers or dropped by surtlings in the Ashlands biome. Greydwarf eyes, however, are exclusively dropped by greydwarfs, greydwarf brutes, and greydwarf shamans. Each greydwarf has a 50% chance to drop one eye, while brutes and shamans have a higher drop rate, often yielding multiple eyes.\n\nTo calculate the number of greydwarf eyes you need, start by determining how many portals you plan to build. Each portal requires 10 eyes, so if you want to build 3 portals, you will need 30 greydwarf eyes. Next, consider the drop rates and the number of greydwarfs you need to defeat. On average, you will need to kill approximately 20 greydwarfs to collect 10 eyes, assuming a 50% drop rate. If you encounter brutes or shamans, this number may decrease due to their higher drop rates.\n\nA practical way to farm greydwarf eyes is to set up a base near the Black Forest biome. This allows you to easily hunt greydwarfs and collect their drops. Equip yourself with a bow and arrows or a melee weapon like a club or axe to efficiently defeat these enemies. Additionally, greydwarfs are more active at night, so consider hunting during this time for increased spawn rates. If you are struggling to find greydwarfs, explore deeper into the Black Forest, as they tend to spawn more frequently in denser areas.\n\nOne common challenge players face is the low drop rate of greydwarf eyes. To mitigate this, focus on killing greydwarf brutes and shamans, as they drop more eyes. Brutes are larger, tougher versions of greydwarfs, while shamans are spellcasters that heal other greydwarfs. Both are more dangerous but provide better rewards. Another tip is to use a workbench to repair your weapons and armor frequently, as prolonged battles in the Black Forest can wear down your gear.\n\nFor new players, it is important to prepare adequately before venturing into the Black Forest. Ensure you have a full set of leather armor, a shield, and a decent weapon. Food items like cooked meat, berries, and mushrooms will help sustain your health and stamina during combat. Experienced players can optimize their farming by using a stagbreaker or other area-of-effect weapons to quickly dispatch groups of greydwarfs.\n\nIn summary, calculating the number of greydwarf eyes for portal crafting involves understanding the crafting requirements, drop rates, and efficient farming methods. Plan your portal network, hunt greydwarfs in the Black Forest, and prioritize brutes and shamans for better drop rates. With these strategies, you will gather the necessary resources to build portals and enhance your Valheim experience.\n\nPractical tips: Always carry a bow for ranged attacks, use a shield to block greydwarf projectiles, and consider building a small outpost in the Black Forest for easier access to resources. Happy hunting, Viking!