Taskmaster possesses "photographic reflexes", an ability that allows him to replicate any actions he has seen, as well as recall them from memory. He has used these skills as a combat instructor for hundreds of supervillains, henchmen, and private miliy companies.Marvel Source
In order to clear his criminal record, he started working with the U.S. government as a combat instructor and currently serves as a member of S.H.I.E.L.D's Secret Avengers.
Max: You will be using it more than Dismember.
1pt: Standard movement skill (use it to get around).
Max: Always use it when it is up to use (meaning your shield has returned) adds a Bleed to targets.
10pt: I dont put too much into it as i dont use it that often, i use it to burn 3/4 of my spirit between using other abilities.
1pt: It does a fair amount of DMG with 1 point in it, but is a cooldown time, so i dont spend points past 1 on it.
Deadly Marksman:
Max: Always keep this up, when a mob moves, re apply, make sure it is in the dense field of mobs to or always on the boss.
Photographic Reflexes:
Max: Basically gives you additional benefits whilst using certain abilities.
Max: Basic Tanky Toggle. Very very good, dmg absorb + regen and 5% to block + HP = Win.
Max: Another Tanky + DMG Toggle. Adds Hp per Hit, Dodge, Tenacity and DMG rating.
1pt: 1 point is enough for this as with gear and cosmics etc you can get it to a decent stat, and with this build you wont need to use it that often unless in X-Defense / MM to buff your group.
Gearing for this is pretty much simple:
Slot 1, 2 and 5 Taskmaster Uniques
Slot 3 and 4 prefer something with +Durability or Cosmics with +Dodge, HP regen, + to skills you are using and +defenses and at least 1 with + % to Invulnerable and 1 with + Invuln or +atkspd move etc.
Artifacts:
Can Sub Yuriko's Charm [Super Heroic] in for Pyms until you have Pym's or instead of Pym's. Make sure the +regen is at least 5k+ and the DMG on it is also good.
Nutso is put in there because you will need a little amount of Attack spd for Foeslayer and to make more use of your HP per hit from Lemuria Relic and the Fearless Acrobat.
Repulsor Field for the added Defense and the Deflection. Try to have a 19-20% one.
Adv Super Soldier goes without saying for Taskmaster for this build.
Relic:
Relic of choice is Lemuria with this build as it capitalizes on the HP per hit to keep you alive between all the dodging, deflecting, blocking and invulnerables.
Legendary:
This is a throw up between Excalibur and Persius Shield. I personally went with Persius Shield due to the added 10% deflection and 5% block putting me at 10% block and 30% Deflection. Not to mention the added HP and Defense and the chance on being hit to blow everything up.
Core:
I have a +Regen and + HP on hit core.. Optimal for this build is also to have either + Dur or + Fighting on it depending on what you want.
Costume Affixes:
Dodge Rating and HP
Uru-Forged:
This is also a toss up between Physical DMG or Defense. I went with the Defense Uru-Forge item just to improve my overall tanky until im too tanky and not enough DMG. At that point i will probably re assess which one i would use with what enchant.
Basics of this build is that by the time you hit 30 you should be pretty tanky... If you are Prestiging and already have Legendary and Relics plus decent Costume Affixes on the lvl 1 costume. By the time you hit 20 you cant be stopped.. Once you put on a 30/40 Core with +Hp on hit and Regen you will be doing Red Terminals and wishing you could do Cosmics at this low level.
Once you hit 60 with partial of all the gear you can pretty much walk into cosmics like you own the place even while wearing lvl 35+ gear. Only problem you will encounter is from Bosses with Mortal strike, this is not a deathly problem, it just means it will take a little longer to kill them, otherwise in most cases you can just stand in their face and take everything they can throw at you.
In X-Defense around Wave 19 you should start to see your hp move, but it isnt bad at all.
In MM you can tank all 5 Brother Hood at same time and still be laughing... Yes thats Mageneto, Pyro, Blob, Toad and Sabre at the same time.
All in all you should be looking at (top end 60 gear) about 20-25k+ hp, 15k+ Defense, 30%+ Deflection, 30%+ Dodge, 30k+ Regen, 10% Block and various other stats making you pretty much unstoppable.