The Portal to the Onslaught Dimension

The Portal to this Dimension is protected inside of the Overworld by Illager Citadel's. These castles are protected by the hordes of the Onslaught. The Portal is created by a Nether Portal pattern but with Obsidian Cores. This block is created by an emerald surrounded by Crying Obsidian. To activate insert a golden key in the slot created, by you making this pattern. Key's are made with 3 iron ingots and 2 iron bars in the form of a Key. for a Golden Key surround a Key with Gold Ingots/Blocks. If you create a portal instead of find one it will spawn a Newborn Citadel, a Citadel with reduced mobs.