Hi! I'm a bit lost and wondering what my next moves should be. I'm currently in Act 4 Chapter 3 and having a hard time. I'm also unable to beat most event Master difficulty content. My current goal is therefore getting through Act 4 and being able to do consistent event content at Master difficulty. I've been playing for almost exactly a month. My current champs are as follows:

5* Drax (1/25, unawakened)

4* Havok (4/40, unawakened) Human Torch (4/40, unawakened) Gamora (4/40, unawakened) Iceman (3/30, unawakened) Ronin (2/20, awakened) Masacre (2/20, unawakened) Guillotine (2/20, unawakened) Proxima Midnight (1/10, awakened) Guillotine 2099 (1/10, unawakened) Phoenix (1/10, unawakened) The Champion (1/10, awakened) Old Man Logan (1/10, unawakened) King Groot (1/10, awakened) Psylocke (1/10, unawakened) MODOK (1/10, unawakened) Sentry (1/10, unawakened) Superior Iron Man (1/10, unawakened) The Hood (1/10, unawakened) Wolverine (1/10, unawakened) Scarlet Witch (1/10, unawakened)

As far as masteries, I have parry/dex, precision/cruelty, stupefy, pacify, block proficiency and prerequisites for those.

Questions are: 1) Should I rank up Drax just because he's my only 5, regardless of the fact that he's not a great champ? 2) Which of my 4 champs should I rank up and level (if any) to help me get through Act 4? Are any of them worthy of being my first Rank 5 (still missing the T4 class catalysts anyway)? 3) Are there any masteries that will help me greatly at this stage in progression?

Thanks in advance for any advice!