mtg cards like heartstone This effect cant reduce the mana in that cost to less than one mana. How strong would these Heartstone

What makes a good Commander

It turns non-creature artifacts into creature artifacts, and vice versa

Pulling teeth, the card, excels because even though we think were looking at an image conceived just to make us feel sick, we may very well just be looking at a correct depiction of the point of view of a dentist from medieval times

At one of the latter stages of casting spells a player defines its total cost: Total cost is a spells mana cost or alternative cost, plus all additional costs, plus all effects that increase mana cost, minus all effects that decrease mana cost

Crux of Fate is a noteworthy card if youre into dragons

Thats useful in and of itself, and while we went out of our way not to include the Sanguine Bond + Exquisite Blood combo (you should have them both in your deck), having one of those effects on a Creature is useful