See the storage guide For serious money, buy graded from a reputable seller, or buy raw only with clear, well-lit photos of corners and surface
Illustrated by James Ryman Standard Not Legal Alchemy Not Legal Pioneer Not Legal Historic Not Legal Modern Legal Brawl Not Legal Legacy Legal Comp
Every Modern Horizons 2 Collector Booster will include four rare or mythic rare cards
The more instants, sorcerys, discard and sac effects you have the better Witness is but I mostly consider it filler
Courser of Kruphix Landfall: Gain a life approaches the pinnacle of incidental lifegain
Based on the latest market prices tracked on TCG Stacked, Liberator, Urza's Battlethopter is worth about $5.05 USD for a regular copy and $5.47 USD for a foil copy