mtg iconic cards Booster Pack : Masters (IMA) : Toys & Games At the beginning of your upkeep 10 of the Most Iconic

This allows you to get out huge creatures at exactly the right time, or leverage enter the battlefield abilities to best effect

Diluvian Primordial or Hullbreaker Horror in the 99, or your commander is one of Jin-Gitaxias, Core Augur

It's not just the most expensive Lord of the Rings card, it's the most expensive Magic card ever, period

Played on turn 1 and dealing with it immediately it already replaced itself, while dealing with it with paying for the trigger it already did its job in slowing you down and letting the player gain a tempo advantage

This caused me to bounce off Magic: The Gathering on repeat for a long time

For singles, theres always sites like Amazon (you can also get other cards like Pokemon or Yu-Gi-Oh