Need help with a moc idea

I am currently trying to build my own combining moc made of mythical creatures but I'm having a hard time deciding on the last one the theme is mythical creature mixed with a type of ore. Right now I have gold Goblin, obsidian Drake, howlight fenria, lapis slime, but I can't think of a fourth one, y'all got any ideas? Also I could have sworn you could use more than one tag on posts, did they change that or am I just having issues submitted by /u/Charming-Yogurt2584 [link] [comments]