Tins, Tinkers Construct

Indestructible, Wither
Whenever a creature dealt damage by Tins, Tinkers Construct dies in same turn, Put a +1 +1 counter on Tins, Tinkers Construct draw a card
and lose 1 life.
{4}: Deal damage equal to the number of +1 +1 counters on Tins, Tinkers Construct to any target.