Onogmon, Junkyard Tyrant

Whenever a construct you control dies, put X
+1/+1 counters on target artifact creature you control, where X is the power of the creature
that died.
{2}, Sacrifice another artifact: Onogmon, Junkyard
Tyrant gets +2/+0 and trample until end of turn.
"An earlier prototype that was sent to the scrap. There
it found new parts, and a kingdom to rule."