Space Guardian Voltron

Whenever you cast an equipment spell, draw a
card.
Equip costs you pay cost {1} less to activate.
As long as six or more equipment are attached to Voltron, it has +6/+6, has hexproof, indestructible, and can't be sacrificed.
"Activate interlocks! Dynatherms connected!
Infracells up Mega thrusters are GO!"