When you have situations where they will not be getting the chance to usefully replay the card in question Boomerang is comically better than Vindicate, one less mana, one less colour, instant speed and not even triggering any "when this dies" effects
He told me there are many reasons for this, but one is simply that the Balrog is fun very fun to paint, very fun to make. On top of that, WOTC just needed more bulky red cards for the set, as they were pulling only from material in the three original LOTR novels
Maybe theres a Commander deck thats interested in this equipment for the synergies alone, like lowering the cost of the spell or auto-equipping
How much should Snapcaster Mage cost
Trap Iron Thunder Trap Counter When a Spell/Trap Card, or monster effect, is activated on the field: Pay half your LP