Kevin transforms into a flying water sphere, heading towards the black spire.
With his left hand, Gardner drags his fire elemental sphere, and with his right, he grabs some lava and throws it onto the ground.
The moment the lava hits the ground, it explodes into sparks and magma, morphing into three flame serpents with three heads each.
"Kill them," orders Gardner.
Upon receiving their master's command, the three flame serpents seamlessly slide into the ground, moving underground towards their enemies. They then spring up from beside them, exhaling scorching flames and magma.
Meanwhile, Gardner himself hurls fireballs and fire rays from his fire elemental sphere, thwarting any enemies attempting to escape. This forces them to stay put, awaiting their doom from the flame serpents.
The alchemists and wandering wizards of the Black City do consider retaliating.