Just like the Construct suggests, I really like this with artifact tokens like the recent Soldiers, Thopters, Myr, Servos, and more
If its your endstep, choose target creature with a bounty counter at random then destroy that creature and remove bounty counters from all creatures
UW has a selection of aggressive options and is certainly competitive but it is quite clumsy to build and lacks great synergies resulting in it being an uncommon deck to encounter
But then, after spending some time with the spoiler and cards, we learn to appreciate the set for what it is
But they are great for controlling the board and protecting key creatures
Anything with a +1/+1 counte also gets reach and trample to help make getting yet more +1/+1 counters easier