Was OP during release and now dropped down into oblivion.. it's a common play by konami so peoples have more things to play (or more precisely, more things to SPEND)
GB is definitely not dead yet. I reached KoG in just one day with this deck in March 15. Trunade is only good if you are using Cyber Angel or any monsters that have higher attacks on first turn. Drawing trunade is still based on luck winning. Unlike GB. the first turn you draw is always 100% luck. . .
No its not dead,but GB dont have ways to survive the massive destruction effects of new decks...its sad but GB is good but not against the actual meta,mayber if Gyzarus get released they back to tier list