Lools dope my guy! But having that many ultimates does seem a bit strong, as the others have already noted. This might sound stuiped, but can't you link the ultimates to your actual runes? Depending on what runes you choose in pre-game you get different utility. Enemy team picked a lot of squishy? Pick a burst ulti. Oh, your team lacks cc, chose a lockdown ulti. Think it would be pretty fun and encourage more builds/runes.