mtg gift a card bloomburrow Sazacap's Brew blb#151 Art Basic Lands Generous Gift

Play Valakut Stoneforge

The only question is whether those options are worth the cost, and it's hard to argue that Dawn Charm isn't worth the two mana price of entry

The only thing you have to watch out for is having enough black mana producing lands to cast Darkblast multiple times in a single turn

Teval exacts a toll for casting spells, making it so you lose life equal to its mana value, and thats for everything, not just spells you cast with a delve cost

This card permanently exiles something on its first ability

Krenko sees most play in the Commander format where decks can find ways to activate him multiple times in one turn