Trickmaster

Trickmaster is a Heartless boss from Kingdom Hearts and Kingdom Hearts: Chain of Memories. For defeating it on the first game, you get the Wonderland specific accessory, the Ifrit's Horn.

Kingdom Hearts
''Heartless that Sora and company encounter while they searched for Alice. His herky-jerky attacks and juggling act flustered Sora and the others.''

Kingdom Hearts: Chain of Memories

 * Sora's Story

The Heartless in Wonderland that stole the Queen of Hearts's memory.

Victims of memory theft don't even remember what it is they forgot.


 * Riku's Story

''The Heartless that threw Wonderland into chaos. It appeared to Riku as a token of the indelible Darkness in his Heart.''

Kingdom Hearts
The sneaky Trickmaster was a Heartless that Sora and his friends encountered in Wonderland while searching for the missing Alice. Throughout most of the adventure in Wonderland, Trickmaster is referred to as the shadows or as the darkness (especially by the Cheshire Cat).

Kingdom Hearts: Chain of Memories
Trickmaster briefly appears as a figment of Sora's memory. It stole the Queen's memory, and she accused Alice of the crime.

The Trickmaster also appears to Riku, as a figment of his memory and a representation of the darkness within him.

Kingdom Hearts
The Trickmaster's weak spot is located high on its chest, and so can only be hit with aerial combos or from an elevated position. Occasionally, it will collapse, which is the perfect opportunity for some quick combos. Get as many hits in as possible, as it will soon regain its height.

Refrain from using Fire magic in the battle, as doing so will ignite the clubs carried by the Trickmaster, giving it another, more powerful attack.

Trivia

 * Despite appearing to be one of the largest Heartless Sora fought, in reality it was roughly the size of Donald Duck; Sora battled it while he, Donald and Goofy were small.