I'm not sure if this has been suggested already, but is really like to see a wave based boss tower type thing. This would be a set of boss encounters taken from missions/strikes/raids that are harder in some way. They could be stronger, have modified attacks, or maybe even have bosses being paired/grouped up. The early waves could be reasonably easy but more challenging than normal and increasing in difficulty with each boss defeated. This would have to be HARD and as a result give good drops to those who are worthy. To make it sort of special so it isn't spammed maybe you could have a weekly number of attempts or have some item requirement similar to the keys/machines required to open portals to fight ubers in the heretics abode in diablo 3. It would add more variety to grinding for loot and you could really turn heads (or blow a hole in them) with the gear you'd win from this. Bragging rights amongst folks in the social tower for conquering the highest levels in the boss tower would also be nice! Anyone else like the sound of this?