The same can be said for playing against bounce spells (they can return their own creature in response), spells that give them hexproof, and so on
At conventions, while trading, or at home
There was a 3/3 Llanowar Elves somewhere

Red-Eyes Black Dragon Red-Eyes Black Dragon Dragon Normal UR Ultra Rare STAR Starlight Rare PSE Prismatic Secret Rare PS Platinum Secret Rare QCSE Quarter Century Secret Rare C Common PS Platinum Secret Rare QCSE Quarter Century Secret Rare PSE Prismatic Secret Rare QCSE Quarter Century Secret Rare C Common SE Secret Rare UR Ultra Rare QCSE Quarter Century Secret Rare UR Ultra Rare C Common UR (PR) Ultra Rare (Pharaoh's Rare) PSE Prismatic Secret Rare PS Platinum Secret Rare GH Ghost Rare UR Ultra Rare PGR Premium Gold Rare C Common SE Secret Rare PGR Premium Gold Rare UR Ultra Rare UR Ultra Rare C Common C Common C Common C Common SR Super Rare UR Ultra Rare C Common UR Ultra Rare R Rare R Rare UR Ultra Rare R Rare R Rare UR Ultra Rare C Common SR Super Rare SE Secret Rare UR Ultra Rare SE Secret Rare UR Ultra Rare Related Cards View as Gallery View as List Archfiend Black Skull Dragon X DARK Level 9 [ DragonFusionEffect ] ATK 3200 DEF 2500 1 Level 6 "Archfiend" Normal Monster + 1 "Red-Eyes" Normal Monster You can only Special Summon "Archfiend Black Skull Dragon(s)" once per turn

You will quickly accumulate treasure tokens in a multiplayer game and may even have more mana at your disposal than a green deck.
Thats right, theres no more trading between players like there was with PTCGO, but this is a most welcome change because now all cards are easily obtainable through crafting regardless of popularity