Stream's Test and his question

yugi is an old character in Yugioh Series and he introduce all other character how to duel with a high skill he always use (i think its just a lucky hand)..Yugi is king of duelist in all of timeline. Without yugi, The academy of yugioh in Generation Next series will never exist (i think Dartz will lead the world and ready for destruct the world just like his atlantis if Yugi cannot defeat him, XD LOL). And of course Yusei who live in the most future, will never exist too as this consecuences. So Yugi, is still the main character in all of yugioh series. Its why The title was still Yu-Gi-Oh (not Ja-Den-Oh or Yu-Sei-Oh) although there are no yugi in 5ds or GX as the main character (Yugi is only another advisor of Judai besides yubel in GX, xD ).. Its my theory, why Yugi is so important and he deserves to always present in the middle of other character..Please dont laugh after read this