The card begs the oft-asked question, In the absence of an objective rule structure, do we all become Squee? The most obvious use of the card is to strengthen the waning popularity and power of U/R Storm in Modern (for a good list pre-Faithless Looting, see the list that I cited in my last article)
Opposition Opposition is one of those Magic cards thats so good it makes you wonder what the designers were thinking when they made it
Kaalia of the Vast can cheat it from your hand (since it's a dragon), Yuna, Hope of Spira can bring it back from your graveyard (since it's an enchantment), and Esper Terra can copy it and trigger most of Bahamut's value by advancing three chapters: Summon: Bahamut isnt legendary, so Esper Terra has no problem copying it
The upcoming set is packed with references to Dungeons & Dragons locations, monsters and adventures both new and old, including elements that have appeared outside of the RPG in novels, video games and comics
If someone were to put this Dream Coat into an old school deck, youd be using it to get around protection or to make a creature vulnerable to color-sensitive effects like Terror, Red Elemental Blast, and so oneffects plentiful in early Magic