5% market price cash, 10% market price in store credit, and they sell them at 500% market price.
They provide the fuel for the powerful attacks and abilities of the game's creatures
When it comes to 60-card formats and Commander, there are only two cards in the set that see significant play High Tide and Hymn to Tourach
If there were any lands that were also artifacts before the abilitys effect applied to them, those lands would become artifact land creatures, not just "creatures," or land creatures. The effect allows them to retain both the card type artifact" and the card type land. In addition, each land affected by the ability retains any land types and supertypes it had before the ability took effect
Breath Weapon Pauper is a format without many board wipes, so when something serviceable like Breath Weapon comes along, it's sure to hit the stack