cait traps not rooting rumble through a W
i dont play either
or 
but i have found that when i got into an "all for 1" game as rumble vs cait
i could walk over the enemy cait traps and not get rooted if i had my W speed boost (scrap shield) active i'm not sure if this is intentional or not... but i tested it multiple times and i never got rooted when i walked over a trap with my W active