Whoever it attacks only has to deal with one squirrel, while every other opponent has to deal with two
There are also a bunch of versions of the basic interaction with this, Myr Turbine, or another other artifact token maker with an artifact sacrifice outlet like Blasting Station
For example, if Ephara is dealt what would be lethal damage and later loses indestructible (perhaps because you lose control of some enchantments), it will be destroyed the next time state-based actions are performed
The Epic cards may not feature new artwork, but the glimmer and shine on them and the open air card frame will still make them something worth pulling
With a cast trigger, it exiles two permanents, taking care of the two biggest threats from your opponents
artist tape - if you want to blank or prime only certain parts of a card the tape comes handy