The second you have two or more of these, your opponent needs cards like Tragic Slip to get around them
As the 2nd true flip Planeswalker on both sides (Garruk Relentless into Garruk, the Veil-Cursed was the first), Arlinn offers a lot of options
Crew and station give you access to larger creature stats regardless of their other effects, while saddle is directly linked to attacking
In a vacuum, these cards are absolutely nowhere near each other in power level - although it is amusing that they work well together
Rather than $40 precons, today I look at the commanders at the helm of EDH decks that can go for upwards of $1,000
Now, if you have Seeker of Skybreak, you can attach the bow to it, and have it target itself to untap giving infinite ping damage, and winning you the game