Consider its card type, any effects that modify when you could cast it (such as flash) and any other effects that stop you from casting it (such as from Meddling Mages ability) to determine if and when you can do this

$0.49 No-Regrets Egret (Not Tournament Legal) Mystery Booster 2 $0.49 Value Town (Not Tournament Legal) Mystery Booster 2 $0.69 Gobland (Not Tournament Legal) Mystery Booster 2 $0.49 Maestros' Totally Safe Hideout (Not Tournament Legal) Mystery Booster 2 $0.49 Processing Plant (Not Tournament Legal) Mystery Booster 2 $0.49 Temur Elevator (Not Tournament Legal) Mystery Booster 2 $0.49 Wisedrafter's Will (Not Tournament Legal) Mystery Booster 2 $0.49 Planeswalkerificate (Not Tournament Legal) Mystery Booster 2 $0.59 Kozilek, Compleated (Not Tournament Legal) Mystery Booster 2 $0.49 Glimpse, the Unthinkable (Not Tournament Legal) Mystery Booster 2 $0.49 Heart of a Duelist (Not Tournament Legal) Mystery Booster 2 $0.49 Under-Construction Skyscraper (Not Tournament Legal) Mystery Booster 2 0 results found
A Magic Card can either be Played (face-up) or Set (face-down) on the field
You can see it got a little confused and drew a fox in the background, but overall its good art
Rude Awakening 4 This is somewhat of a Craterhoof Behemoth for a very land focused ramp deck
Finally, the cards condition also plays a role in determining its value, with high-grade or gem mint condition cards commanding a higher price