Carry on your first turn as normal, and then progress into your first extra turn
Roar in Unison (sounds so badass as well!) attaches two free Energy to Hydreigon from the Energy Zone once per turn, but whenever you do this, you also do a recoil damage of 30 to Hydreigon
With Partner and Friends Forever, Your deck's colour identity is defined by both of your Commanders combined: for Chief Jim Hopper and Lucas, the Sharpshooter make the deck's colour identity Jeskai (white, blue, and red), while Ishai and Armix make it Esper (white, blue, and black)
If that spell is an instant (most likely a kindred instant) or has flash, you'll be able to cast it any time you could cast an instant, even on an opponent's turn
Bottom Line As you can see, it is quite easy to distinguish the original card from the fake Magic: The Gathering card