mtg goblin commander precon Goblinstorm Rakdos Krenko goblin precon demanded

Mephitic Ooze Darksteel s Mephitic Ooze cares about artifacts, which makes a lot more sense when you remember the name of the MTG set it came from

Even if you play her for 5 mana and simply use the first active ability, it's still worthwhile as the solid planeswalker and a 6/6 creature token in a single turn are both great

Delirium Create a 4/4 white Angel creature token with flying if there are four or more card types among cards in your graveyard

Mutate a Blackcleave Goblin after a boardwipe and get someone almost halfway to 10 infect in one swing

Most formats have a banned list of some kind

Keep in mind, if you tap a Sol Ring for mana, you just used up your one discount activation for a turn