Living End is a graveyard-based combo deck, making Endurance a premium answer: evoked for free, it puts their graveyard on the bottom of their library right as they try to cycle creatures away before their suspended Living End resolves, disrupting the whole plan. Wistfulness can be hard-cast to exile a problematic permanent, or evoked cheaply, though it is sacrificed immediately when cast this way. Consign to Memory is worth keeping in: it counters target triggered ability or colorless spell, and since cascade is a triggered ability it can strip the free spell off Violent Outburst or Shardless Agent regardless of that spell's color. Both decks are racing to combo, so proactive graveyard disruption matters more than trimming reactive countermagic here.