Frontiersman's Spawner Upgrade Rune

Right-click a spawner with it: 150 to 600 ticks between spawns, seven mobs at once, 12 nearby at most, active within 24 blocks. A Spawner Rune, four Timeworn Fabric, two clocks and two flint.

Spawners and spawner runes, in the Apotheosis guide

Tick what you already have.

radio_button_uncheckedMark as already had×4Timeworn Fabric

radio_button_uncheckedMark as already hadDeepslate Gold Ore

radio_button_uncheckedMark as already had×4Gold Ingotgrid_viewBlast furnace, +64 more

radio_button_uncheckedMark as already hadRedstone Dustsync_problemgathered, not crafted

radio_button_uncheckedMark as already had×2Clockgrid_viewCrafting table, +2 more

radio_button_uncheckedMark as already had×2Flint

radio_button_uncheckedMark as already had×2Gem Dust

radio_button_uncheckedMark as already hadCobbled Deepslate

radio_button_uncheckedMark as already had×8Deepslategrid_viewFurnace, +7 more

radio_button_uncheckedMark as already hadGem Dust

radio_button_uncheckedMark as already had×2Gem-Fused Slategrid_viewCrafting table

radio_button_uncheckedMark as already had×5Spawner Chain

radio_button_uncheckedMark as already hadSpawner Runegrid_viewCrafting table

Frontiersman's Spawner Upgrade Runegrid_viewCrafting table