Off-Hand Brace

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)
When equipped creature blocks or is blocked, prevent 1 combat damage that it would deal and 2 combat damage that would be dealt to it.
Equip {2} w/convoke ({2}: Attach this Equipment to target creature you control. Equip only as a sorcery. Your creatures can help pay this ability's cost. Each creature you tap while activating this ability pays for {1} or one mana of that creature's color.)