As Lex taunted Zeek and encouraged him to attack them, he deactivated the Telekinetic Control Eye and was planning on fighting him in hand to hand combat, which Zeek believed was Lex's biggest mistake.
Little did he know, Lex was also more confident in hand to hand combat and was extremely skilled and experienced in it.
Zeek was impressive in combat, and his transformation was unique and fascinating to observe.
Using some sort of cheetah-like beast transformation, he burst towards Lex, but then used some sort of gorilla-like beast transformation before reaching Lex.
That allowed him to display great explosive power and speed, and then unleash a strong attack.
Lex took his fist head-on and was impressed by the force behind it, but their gap in power and strength was still too large to be overcome using only the beast transformations.