The Dungeon Dimension Portal

This is a post connected to my main idea linked here > https://feedback.minecraft.net/hc/en-us/community/posts/360048202891-The-Dungeon-Dimension (Read the linked one first if you haven't already). The portel that you can find to get to the Dungeon Dimension should be rarer then an end portal and kept near dungeons in the overworld. It should have mobs coming out an active portal  commenly like they're mobs coming from the dimension.To activate the portal you should have to have thrown a diamond sword and a mob head/skull of your choosing into the middle of the portal frame, leaidng to the items vanishing. The area the portal is built in should have the same Stone brick run down look as the dimension itself. Loot chests can spawn near the portal similer to stronghold loot chests, ecept having wepons and armour instead of random loot. The portal should look like it is made of mob heads or a different unique texture. That's up to Mojang.