This is mainly because the card pool on Arena is much larger
The best sequence of actions would be to cast 2 Creatures in your 1st Main Phase, Convert into Prowl, Stoic Strategist, and then attack as a 5/5 Creature that can Exile up to 1 other tapped Creature or Vehicle
Find a place to compete: Finding a place to play is not as complicated as it used to be, or at least not as impossible as it was in the days when the Internet made weird noises when it connected
This universal catch-all has a very limited drawback, tossing the opponent a creature when its slain
Pinkie Pie would be the one to sit you down for a game of Magic and bring in new friends
(8/25/2015) If a replacement effect will cause cards that would be put into a graveyard from anywhere to be exiled instead (such as the one created by Anafenza, the Foremost), you can still put an exiled card into its opponent's graveyard