4c HollowOne has very few colorless spells (Hollow One itself is a target regardless of cost) so Consign to Memory is a low-impact inclusion here, mainly useful to counter Hollow One at any cost or to stop stray triggered abilities — this is a marginal upgrade at best. This matchup is almost entirely a speed race, since HollowOne wants to dump its hand via Burning Inquiry and Faithless Looting to enable free threats and Vengevine recursion just as fast as you assemble Charbelcher. Prioritize mulliganing aggressively for the fastest possible kill and hold Force of Negation/Disrupting Shoal to protect your combo turn from any stray interaction they draw.