Soul Gem

Right-click a mob to capture it and again to release it, as often as you like; bosses cannot be captured. Also feeds the Dimensional Battlefield.

Everything else worth binding, in the Occultism guide

Tick what you already have.

radio_button_uncheckedMark as already hadDiamondsync_problemgathered, not crafted

radio_button_uncheckedMark as already hadCopper Ingotsync_problemgathered, not crafted

radio_button_uncheckedMark as already hadSilver Ingotsync_problemgathered, not crafted

radio_button_uncheckedMark as already hadDeepslate Gold Ore

radio_button_uncheckedMark as already hadGold Ingotgrid_viewBlast furnace, +64 more

radio_button_uncheckedMark as already hadDeepslate Iron Ore

radio_button_uncheckedMark as already hadIron Ingotgrid_viewBlast furnace, +70 more

radio_button_uncheckedMark as already hadEgg

radio_button_uncheckedMark as already hadSand

radio_button_uncheckedMark as already hadGlassgrid_viewFurnace, +8 more

radio_button_uncheckedMark as already hadFragile Soul Gemprecision_manufacturingRitual (Occultism)

radio_button_uncheckedMark as already had×3Soul Sand

Soul Gemprecision_manufacturingRitual (Occultism)