mtg gift a card bloomburrow Sazacap's Brew blb#151 Showcase cards MTG Longstalk Brawl Bloomburrow blb#182

It's basically a creature version of Lotus Petal and it's primary use is as an initial black mana source by casting it with an Elvish Spirit Guide

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

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

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

This card permanently exiles something on its first ability

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