Aurelian Sol

Targon
You may cast Aurelion Sol from the command
zone without paying its additional commander tax.

As an additional cost to this card, you may pay {x}, search your library for a creature that belongs to Targon that costs {x}, you may play this card or add it to your hand. If there are no Targon Creatures left in your deck, you may search your graveyard.

{t} Add one mana of any colour.