These shared all the issues that flip cards had had in the previous two sets
As the name implies, it's built around the Eldrazi creature type, with all colors available for you to play
Having good cards is the most important thing and so you try and take the best of the suitable stuff as you see it
This gives [c]Galvanic Relay[/c] a higher potential upside than [c]Act on Impulse[/c], as you can chain spells like [c]Pyretic Ritual[/c] and [c]Manamorphose[/c] to boost up your storm count, that way youll have plenty of cards to play for your next turn
The card draw clause pretty much guarantees that youll never run out of auras to play (assuming youre building your deck with lots of them), and the +2/+2 clause means that youll have a giant creature to attack your opponent with
If the manufacturer doesn't sell it as a single and no holder wants to let it go, you're out of luck