Most of the level up cards were released in Rise of the Eldrazi , but some new level up cards have been added in Commander sets and Secret Lairs
Agent Frank Horrigan Fallout s Agent Frank Horrigan may be hard to cast, but if you translate this creature's ability to infect damage, it reads, Whenever it enters the battlefield, each opponent gets two poison counters, which is a big deal in a multiplayer environment
they're not optimal or perfect, but are here to give you an idea of what kind of cards these decks play
If it comes down to sacrificing two tapped Mountains to get more goblins, just be sure you can finish the game quickly
But theres something about a card that you can cast from exile for just 5 mana: Not only do you get a giant beatstick, but also two creatures and two Treasures
First strike is primarily used as an offensive weapon to push your creatures through, but can also serve as a defensive measure to keep opposing creatures at bay