Ideas for Azir, Trundle, Ashe, Yorick, and Graves

Before I begin I would like to ask that you also check out my other post about my ideas for Ryze, Gangplank, Fiddlesticks, and Udyr... I have some great ideas involving the champions in the title, so here they are!

Azir: A new ultimate, Azir's ultimate should change so that instead of summoning five soldiers to create a wall, he now summons a sand storm. This storm would act much like Nocturne's ultimate in that it would dramatically reduce the enemy champions sight and would render there map useless. The sand storm would also blind the enemy champions, making there basic attacks and damaging abilities miss every so often, like Teemo's Q.

Trundle: A new ultimate, Trundle's ultimate should change so that he simply selects an area in front of him and then roars, causing an avalanche. (or a mud slide if you have a skin) This avalanche would do HUGE damage to all enemies un-lucky enough to be caught in it's path, and would create an impassable area, meaning that no one - on ether team - could pass through the snow (or mud) until it melted, which it does over time.

Yorick: A new Q, and a new passive, Yorick's Q should be changed so that if Yorick is near the dead body of a champion - from ether team - Yorick digs a hole and buries the body and then the spirit of that champion follows him around for a short while, similar to his ultimate only that this spirit doesn't allow the champion to become alive like Yorick's ultimate.

Graves: A whole lot of guns, If Graves is a master of crime it stands to reason that his only weapon isn't just a grenade launcher, cool as it may be. So one od his abilities should allow him to switch between his trusty grenade launcher, an assault rifle, a shot gun, and a pistol. Because of this Graves passive should be changed so that when he dies he goes into a "last stand" and pulls out his pistol for a few more seconds until he bleeds to death. I also think that while Graves is in last stand he should have the opportunity, after a very lengthy cool down, to slam one of his grenades into the ground creating a huge explosion, like how he killed Natulius in the cinematic trailer " A New Dawn".

These are just my personal ideas about how to improve these already great champions.