The trade-off is availability
Valgavoth, Harrower of Souls wants you playing any cards that can make your opponents lose life during their turns
Simple Interface While making a card can be complex because you have so many different decisions to make, navigating the card maker shouldnt add to the complexity
Rosheen Meanderer is another incentive to cast hydras with X in their mana cost
Some videos have shown people fighting over card boxes in US retailers, with the situation getting out of hand
[Card]Aetherworks Marvel[/Card] [Card]Dig Through Time[/Card] [Card]Smugglers Copter[/Card] [Card]Emrakul, the Promised End[/Card] [Card]Emry, Lurker of the Loch[/Card] [Card]Felidar Guardian[/Card]/[Card]Saheeli Rai[/Card] [Card]Kethis, the Hidden Hand[/Card] [Card]Mox Amber[/Card] [Card]Narset, Parter of Veils[/Card] [Card]Nexus of Fate[/Card] [Card]Oko, Thief of Crowns[/Card] [Card]Once Upon a Time[/Card] [Card]Prized Amalgam[/Card] [Card]Teferi, Time Raveler[/Card] [Card]Treasure Cruise[/Card] This is my to do list