If you don't control an Army, create a 0/0 black Orc Army creature token first.) If you choose a value of 0 for X while you don't control an Army, you will create a 0/0 Orc Army creature token and won't put any counters on it
A lot of balance and care goes into choosing the cost of a card, more than I can express here, but looking for similar effects on existing Magic cards can give you an idea of a fair costfor example, a ramp spell that puts two lands into play ought to cost 4 mana, per Explosive Vegetation
Mazes End Everyone knows whats up when Maze's End hits the battlefield
Centering: Measure borders (Yellow border on vintage, grey on modern) get the ratio between the 2 numbers (division of the total) Between 50/50 & 55/45 on the front and 50/50 & 75/25 on the back (considered gem mint centering) Between 56/44 & 60/40 on the front and 76/25 & 90/10 on the back -1 point Between 61/39 & 65/35 on the front and 90/10 or better on the back -2 points Between 66/34 & 70/30 on the front and 90/10 or better on the back -3 points Note: If card starts to worsen from centering from here at a PSA 7 but everything else is perfect about the card, in some cases a grader will do you a favor and give you a 9 (OC) qualifier to designate card is great but is off centered
While a "9
What started as an Un-set-only feature, or an electronic games exclusive feature, is now present on lots of black-bordered cards
