Arivan

Arivan the Elementalist is a Hero in Kingdom Rush: Origins, unlocked by reaching Redwood Stand.

Description

SEAL OF FIRE (active) (2/2/2 hero points):

Shoots 2/4/6 fireballs that deal 20-40 area damage.

LIGHTNING ROD (active) (1/2/3 hero points):

Casts a highly concentrated lightning bolt that deals 40-80/100-180/180-340 true damage.

ICY PRISON (active) (1/2/3 hero points):

Freezes an enemy in place for 2/4/6 seconds, dealing 20/40/60 frost damage.

STONE DANCE (passive) (1/1/1 hero points):

Summons 1/2/3 stone shields that protects Arivan from a total of 35/70/105 damage.

ELEMENTAL STORM (active) (4/5/6 hero points):

Summons an elemental tornado that slows and freezes enemies, shoots lightning and deals 210/320/500 area damage over 6/8/10 seconds.

Level	HP	Magic Damage	Armor	Respawn
2	130	10-30	None	20s
3	145	11-34	None	20s
4	160	12-37	None	20s
5	175	14-41	None	20s
6	190	15-44	None	20s
7	205	16-47	None	20s
8	220	17-51	None	20s
9	235	18-54	None	20s
10	250	19-57	None	20s

Arivan is easily susceptible to ranged attackers if not placed right. Even with three stone shields, he can fall quickly to a group of Twilight Harassers and even Gnoll Blighters.
Arivan works best hiding behind a barracks and barraging the enemy with spells.
Gnoll Burners cannot set him on fire so long as he has stones protecting him, so use him as a block to prevent your units from catching fire while Stone Circle's and their upgrades do area damage to the amassed groups.

"Shazam!" is a line said by the DC Comics hero Captain Marvel/Shazam that allows him to transform to or from his superhero form and it usually involves lightnig.
"I bend all elements!" is a reference to the "Avatar: The Last Airbender" series, where many of the characters bend (manipulate) the four classic elements and the titular Avatar is able to bend all of the elements.
According to the developers, Eridan and Arivan are brothers, and sons of a sorceress and a druid. Arivan followed the family tradition of being a wizard, but Eridan became a ranger, becoming a bit of a black sheep in the process. In addition, the brothers do not get along well.