Buy OSRS Eternal crystal
Description
The Eternal crystal is a powerful crystal of magic in Old School RuneScape. It is a rare add-on dropped by Cerberus, the level 318 hellhound boss. The drop rate from Cerberus is 1 in 520, so getting one on your own can take a long time.
The main use for the Eternal crystal is making eternal boots. To do this, use the crystal on a pair of infinity boots. You need level 60 Runecraft and level 60 Magic to combine them, and boosts do not work. Making the boots gives 200 experience in both skills. Keep in mind that this cannot be undone, so the boots cannot be split back into their parts.
Players want the Eternal crystal because eternal boots are a top choice for magic combat. The crystal is also very light at just 0.05 kg, so it is easy to carry. If you want to skip long trips to Cerberus and get your upgrade fast, this crystal is the key item you need. Its item ID is 13227.
