Whenever Tetsuo attacks, if it's equipped, choose one — • Tetsuo deals damage equal to the highest mana value among Equipment attached to it to any target. • You may cast an instant or sorcery spell from your hand with mana value less than or equal to the highest mana value among Equipment attached to Tetsuo without paying its mana cost.

Flash This spell costs {1} less to cast for each attacking creature you control. When Embercleave enters, attach it to target creature you control. Equipped creature gets +1/+1 and has double strike and trample. Equip {3}

Double strike Equipped creature has double strike. Reconfigure {2} ({2}: Attach to target creature you control; or unattach from a creature. Reconfigure only as a sorcery. While attached, this isn't a creature.)

Destroy target creature that was dealt damage this turn. Draw a card.