Removes all red heart containers and gives you 6 black hearts. If Isaac only has one half red heart missing, it will fill the Heart Container and add one half of a Black Heart. Dimension of configuration space of triangulated convex polyhedron, QGIS3 symbology rule-based: use expression in string field for symbol, Instrumentation Amplifier with a gain of 1 doesn't output a different signal, C++ code for calculating the cost of carpet, Taking the bayonet to its logical conclusion.