# Roiling Horror Roiling Horror represents a curious design space from Planar Chaos, exploring what happens when blue's typical control mechanics get twisted into something more chaotic. The card's appeal lies in its unique effect rather than competitive dominance—it creates unpredictable board states that fascinate casual and Commander players more than tournament competitors. Collectors view this card primarily through the lens of set completion and nostalgia for Planar Chaos's experimental design philosophy. The foil variant holds modest appeal since the card lacks the visual spectacle that makes foiling particularly rewarding. Most interest centers on the nonfoil version for budget-conscious collectors building complete sets rather than pursuing premium versions.