O look another 2 piece set that's better than every single 6 piece set

ok

Soulbound by itself is actually pretty weak. Senna however has a lot of potential utility, and she works best in an Infernal team or a Summoner team, but also needs a source of mana regen etc. If you try to build light or dark Soulbound the result is usually 3rd place at best, 8th most of the time, simply because there are too many 1-3 tier champs you can't complete and have a weak tank wall.

Soulbound I've only seen do particularly well in Shadow comps but I haven't had much trouble taking them out. Have they been fitting well in light comps too?