Once you both have enough Trade Tokens, you can initiate the trade to receive each other's card
(We can expect the prerelease later this month.) From a quick scan of the cards, Kingdra looks to be the most straightforward
Not all of the new Doctor Who cards care about Time Counters, either on suspended cards or on permanents you control, but it seems like a really fun direction to build in and a great way to make the most of your own wibbly-wobbly, timey-wimey Doctor Who Commander deck
I think the user interface was a bit finnicky and frustrating in places
TY-PHON & AA-ZEUS Probably a surprise to see on this kind of list, TY-PHON and ZEUS may be competitively viable, but theyre not exactly a must include in every deck
If you can afford the expensive four set of these (They are $1300+ for heavily played versions) then you can have the best chance of drawing one or four as well as the chance for a dreaded double-Workshop hand