Then exile this spell.) "Harmonize [cost]" means "You may cast this card from your graveyard by paying [cost] and tapping up to one untapped creature you control rather than paying the spell's mana cost," "If you cast this spell using its harmonize ability, its total cost is reduced by an amount of generic mana equal to the tapped creature's power," and "If the harmonize cost was paid, exile this card instead of putting it anywhere else any time it would leave the stack." Tapping a creature won't reduce colored mana components of harmonize costs
First, you get tempted by the Ring, which turns one of your creatures legendary
It needs less bodies to win with since you only need to deal 10 total damage to your opponent to kill them, and in multiplayer you just need 10 per person, very possible in one turn
Even if you dont start attacking with it right away, it is a powerful blocker that is fully able to help you keep the Initiative
I won't hesitate to get double uses from a vehicle with a ability