At the beginning of the next end step, sacrifice it
They can be wildly ahead and you drop this down and they pretty much scoop
You have to exhaust each of those abilities when you use them, so it is just a one-time use with each one
Blasphemous Edict is expensive if youre using it as a total board wipe, but it shrinks to a 1-mana spell if there are more than 13 creatures on the board
Stitchers Supplier Graveyard-centric decks are ecstatic to mill six cards for a single mana
MTGA-FRIENDLY TEXT LIST (CAN BE COPIED DIRECTLY INTO GAME CLIENT, FROM HERE USING "IMPORT") : 1 Huntmaster Liger (IKO) 16 1 Yidaro, Wandering Monster (IKO) 141 1 Gyruda, Doom of Depths (IKO) 221 1 Illuna, Apex of Wishes (IKO) 190 1 Brokkos, Apex of Forever (IKO) 179 1 Nethroi, Apex of Death (IKO) 197 1 Luminous Broodmoth (IKO) 21 1 Snapdax, Apex of the Hunt (IKO) 209 1 Titanoth Rex (IKO) 174 1 Everquill Phoenix (IKO) 114 1 Dirge Bat (IKO) 84 1 Gemrazer (IKO) 155 1 Vadrok, Apex of Thunder (IKO) 214 1 Crystalline Giant (IKO) 234 1 Sprite Dragon (IKO) 211 1 Pollywog Symbiote (IKO) 63 1 Mysterious Egg (IKO) 3 1 Void Beckoner (IKO) 104 Decklists featuring these cards (more to be added) : SHIN GODZILLA (2016), THE DECK Featuring Yidaro, Wandering Monster a/k/a Godzilla, Doom Inevitable and inspired 2016's Shin Godzilla