Energy Drillbot

When one or more creatures attacks you or
a planeswalker you control, do the following
steps, in order.
If you control 4 or more gears, add {c}{c} to your mana pool.
If you control 4 or more conduits, add {u}{u} to your mana pool.
If you have 8 or more time counters, add {w}{w} to your mana pool.