I played since 2012 to 2015 but i want to start again today to UR. I have like 150.000 clintz (Bc i bought ambre, 2 morphuns and plenty of Eyrton because i thought it will be CR) but actually dont know what are new game modes and where to start grinding. And need cheapy decks to play. Can anybody help?
As Killic said the best way to grind easy and fast clintz is daily tournaments. After that, you can look for EFC or something.
Something with low stars (26-28* in T2) will be your best bet and probably also the cheapest way. It will also get you higher on the ranking (in DT) which means a better prize
Tourney is a great way to rake Clintz. But I will give you a suggestion of things to do while waiting for a Tourney.
10 Matches in EFC as well while waiting for the next Tourney. Even in Dark Corners, you could win something such as Tokenz from the Daily Box. Being in a higher zone is a bonus. In addition, you can secure free Bronze Tokenz just by playing Survivor Type 1 and 2 and winning 1 Round . Just these activities get 3 Bronze Tokenz at minimum.
With that, in at least 33 days you can get a Collector. With Tourney, just being in the top 100 can help. These Cr Cards are useful for earning Clintz if you sell them or save your Clintz for other cards.