There are so many clans that have Attack/Power increases such as : Ulu Watu, Sentinel, Rescue, Bangers and more.
Other way, is to look at the other side, reducers. There are so many clans that reduces opp. attack/power[mainly] and damage[secondary] such as :Sakrohm, Montana, Uppers and more.
Those both, reduces and increases are the most importent things at Deathmatch T2.
BUT, I personally use Nightmare, because their bonus is to stop opp. bonus, which stopping their reduces or increases at the most times
Summary : The best way to have a good DeathMatch Deck(Type2) is to play with a clan which you have the best perform with.
You probably wont get this for 43000 but you can buy the important cards now and save for the rest later:
3* Zatman (Wall)
3* Oxen (Life Piercer)
Your Defensive Cards.
4* Graksmxxt (Should get this card ASAP Really Helpful in non Elo) can be defensive or offensive.
2* Na Boh (Another Defensive card but harder to use) or you can use Wakai
2* Nimestic (A card just to eat up some of your opponents pills)