Wildocking

Through their bond with their respective Energy Master, an Energy Beast can undergo wildocking (ワイルドッキング wairudokking) to become a limb for their larger partner.
Fiction
Wild King cartoon
At some point, Megatron used Wildocking on him and Captain Volca. Later, Optimus Prime performed Wildocking with Lightlong into Lightning Optimus, which allowed him to send Leafback packing and hold his own against Megatron, briefly paralyzing his opponent in the process.The Power of Bonds! Wildocking! Not to be outdone, Megatron summoned Leafback back to the battlefield to perform Wildocking with him, assuming the form of Flame Grass Megatron, before using the combined might of the duo to seemingly destroy Lightning Optimus.The Hero Who Descends from the Sky!
Toys

Wildocking is the primary gimmick of TakaraTomy's 2025 Wild King toyline, wherein the Energy Beasts can become an arm or leg and combine with an Energy Master acting as the torso. The "Element Energy" pieces of the Energy Beasts can be placed on the Energy Master's chest, indicating the Energy Master's dominion over a specific elemental power.
Notes
- "Wildocking" (ワイルドッキング) is a pun on "Wild King" (ワイルドキング).

