Beads Magic: Roots/Root Whip - Green Bead
Beads Magic: Cage/Steel Spike - Metal Bead
Beads Magic: Waterfall/Water Weave - Pale Blue Bead
Beads Magic: Flame Wall/Flame Column - Bright Red Bead
Beads Magic: Shield/Shield Spike - Gray Bead
Beads Magic: Pit/Black Room - Black Bead
Beads Magic: Tree Snare/Tree Snap - Brown Bead
Beads Magic: Water Floor/Water Gyser - Dark Blue Bead
Beads Magic: Fireball/Fire Shot - Orange Bead

I need four beads and a version of the spell to use. Which ones?