Clear Mind In the Yu - Gi - Oh ! 5D ' s anime , Clear Mind is the ability to control Ener - D with one ' s own heart . Achieving a state of Clear Mind is required in order to perform an Accel Synchro Summon . In the dub , it is also known as Perfect Synchronicity . When performed in the Japanese dub , Yusei shouts " Clear Mind ! " before beginning the summoning chant for Shooting Star Dragon . In the English dub , he says his usual " Rev it up ! " . Clear Mind was first seen performed by Bruno in Yu - Gi - Oh ! 5D ' s - Episode 074 . Requirements . One of the three requirements for Clear Mind is speed , shown by the fact that all instances of it have occurred only in Turbo Duel s . In one instance , Primo was able to block this requirement by ordering his Diablo minions to surround his opponent , preventing acceleration . The second requirement for Clear Mind is that the user ' s " mind " must be " clear " , psychologically speaking . The user must free themselves from all negativity in their mind and heart , and must maintain focus on the battle at hand and nothing else . Bruno is shown to excel at this , being able to ride straight through a wall of fire without even flinching while in this state . Yusei failed this requirement the first time he attempted an Accel Synchro Summon , due to Primo ' s taunting distracting him . In many instances , Yusei has been able to achieve Clear Mind even when his mind wasn ' t totally clear , using the power of the Crimson Dragon to aid him . He has been able to successfully achieve Clear Mind without relying on the Crimson Dragon during one instance when he Dueled against Taro Yamashita . According to Z - one , the third and last requirement is simply a card that has the ability to Accel Synchro Summon . Top Clear Mind . Top Clear Mind is an enhanced state of Clear Mind , first introduced and performed by Antinomy during his second Duel against Yusei in episode 144 . This state is necessary to perform a Delta Accel Synchro Summon . Its power greatly exceeds that of Clear Mind , as shown when Antinomy ' s Delta Accel Synchro Summon created a shock wave that caused the star nearby the Duel to collapse and turn into a black hole . According to Antinomy , to achieve such a state , the user must strongly believe in their own potential to exceed their limits . While Yusei has never performed Top Clear Mind on screen , according to Z - one ' s printout , he must have learned to perform it at some time in the alternate future as he was shown possessing a Delta Accel Synchro monster . Z - one ' s arrival in the present time rewrote that future , causing Yusei to instead develop Over Top Clear Mind ( see below ) . Over Top Clear Mind . Over Top Clear Mind is the highest known evolution of Clear Mind , greatly exceeding even the power of Top Clear Mind . It is first introduced by Yusei during his duel against Z - one in Episode 150 , and is required in order to perform a Limit Over Accel Synchro Summon . When performed , it turned Yusei and his Duel Runner golden in color , possibly implying its god - like powers . To achieve this state , Yusei needed to possess the complete Mark of the Dragon , and , like Top Clear Mind , needed to strongly believe in the potential to exceed his limits , while also believing with the bonds of those closest to him such as friends or supporters .