At its core, the The Griffon's Saddlebag Tumblr is a treasure trove of "homebrew" content designed for D&D 5th Edition. Each post typically features:
Take The Emberweave Cloak (Vol. 2).
If you’ve been in the D&D corners of Tumblr for more than five minutes, you’ve seen them. The clean white background. The lush, painted-style magical item art. The card that makes you whisper “I need this for my campaign.” griffon's saddlebag tumblr