In the episode that inspired the card, M and his companions Jamie McCrimmon and Zoe Heriot find themselves in the midst of a series of simulated war games led by the rogue Time Lord known as the War Chief, which is reflected in the tokens the card games
Regenerate can pretty much keep your creatures alive given the proper resources, unless your opponent drops a regeneration-preventing nuke like Death Pits of Rath
If not, it goes to the bottom of your deck
The Frozen characters work well together, as the new Elsa - The Fifth Spirit card's Rush ability lets her come into play and challenge within the same turn
If youre playing a red deck and have a Smoky Lounge, you could be persuaded to run a few blue lands to also give you access to Misty Salon, or you may simple choose to only stick with the red half
It still gets walled by a token