It was made by combining a crimson charm with 79 spirit shards and a Pot of flour. This required 70 Summoning and gave no experience. The unfinished pouch could then be infused at a summoning obelisk to make the Ravenous locust pouch, giving 132 Summoning experience. Any leftover uncharged pouches may still be converted in experience. Clicking one in your inventory prompts a warning message saying: "this item no longer has use. Convert it and claim the xp contained within?". Choosing 'Yes' will convert all pouches in your inventory into 132 summoning experience each.