After seeing numerous rocks get crushed by the fast and extensive electric needles then continued on a speedy path, while approaching his direction to strike him, Tobi moves to escape.
He hastens to manipulate the floor beneath himself, causing a small, solid earth pillar to rise upward, as he rides on top. The pillar would carry him roughly 10 meters high into the air - allowing him to avoid the threat. As the pillar rise, the electric needles that were fired from Zero would puncture through the pillar's structure, dealing minor damage due to their size.
Following the wide-spread electrical needle attack, Tobi had taken a stance on top of the earth pillar thinking to be out of harms way; be that as it may, he fell prey to Zero's ploy of unleashing a lightning bolt down upon him. Set in a favorable position that benefited Zero, the single bolt had stricken Tobi.
Earlier, Tobi had heard the crackles of the lightning forming, but his body was too large to counter, so he thought to slight sway himself out of the way. The lightning attack was unsuccessful at hitting Tobi's head, instead it aim for his shoulder because of his quick maneuver. Furthermore, despite the earth and lighting weakness/strength notion, the lightning technique was too weak to penetrate Tobi's body because of the dense earth armor.
As the battle subside, Tobi took a moment to reevaluate his strategy, at the same time, releasing the Hardening Technique. Shortly after, he came up with a plan and immediately moved to attack.
Tobi glares down at Zero from his vantage point, while performing the Tiger hand-seal, invoking an illusion. Next, he would throw a multitude of explosive tags that scatter around Zero from above. Zero would see these explosives tags as imaginary butterflies flapping around him and would be unaware of the true danger hidden within. Following that, Zero would start submerging into the ground, but in reality, immobilized by the Genjutsu. As Zero is disabled, Tobi would vanish in the illusion to cover his tracks - although, in reality he is leaping to the ground and sprinting towards Zero - and would reappear in the illusion and place the final explosive tag on Zero's forehead to detonate the explosives simultaneously. Tobi would vanish out of the illusion and position himself outside of the blast radius.
Keeping a safe distance, he searches for Zero's remains.