Living End is a suspend-based combo deck that cascades into or suspends Living End to reanimate its whole discarded creature suite at once, so Sheoldred's Edict is far too narrow and slow against a deck that wants to blank single-target removal by design. Consign to Memory is crucial since it counters the triggered ability of Violent Outburst's cascade or can be held for other colorless/triggered interactions, while Mystical Dispute cheaply answers their own Mystical Dispute, Force of Negation, or any blue spell in the mirror-style disruption war. Your Force of Negation is premium here to stop Living End itself on the stack, while Subtlety handles opposing creature spells; prioritize countering the Living End spell over anything else, since once it resolves the damage is done.