Charm of Muramasa Clan

Choose one:
- Destroy one target Artifact.
- Equipedd target creature gets +2/+0
and has First Strike.
" To test a sword worked by the master blacksmith Muramasa, its owner holds the edge of the blade
against the chain in a stream. A leaf floating in water;
when touching the blade and by the force of the chain
alone, should be cut cleanly."