# Darkheart Sliver Darkheart Sliver represents an interesting design moment in the Sliver archetype. As an uncommon from Planar Chaos, it occupies a middle ground that collectors often overlook in favor of rarer Sliver lords or more impactful creatures. The card's ability to sacrifice itself for life gain appeals to players building Sliver decks around sacrifice synergies, but it lacks the broad appeal of other tribal payoffs. Collectors typically view Darkheart Sliver as a functional piece rather than a standout. Foil versions hold modest appeal among Sliver enthusiasts completing sets, though the uncommon rarity limits demand. It's the kind of card that matters within its specific context but rarely commands collector attention outside dedicated tribal builders.