Encoder

Whenever a creature you control attacks, put a
Code counter on Encoder.
Remove three Code counters from Encoder: Put
a -1/-1 counter on target creature.
Remove ten Code counters from Encoder: Until
end of turn, each creature your opponents control
loses all abilities and become a black Shadow
with base power and toughness 1/1.
No one have ever seen an object that can change the
code of life itself.