Click a nodeSelects it and lets it speak.Click empty spaceDetonates there. Click again to stack.Right-clickSummons a comet, portal or attractor there.Drag a summonMoves it. Escape clears the selection.A light's traitSits beside its age when you select one.KeyboardTab to the field, then arrows to move the cursor, Enter to select, Shift and Enter to hold a second, Shift and arrows to move, S to summon, B to detonate.