You can swap between Mapping and MF setups in a few seconds!
-::- How do I play this? -::-
You run into a map, cast Blood Rage, then Leap around dropping your Ancestral totem here and there to make you faster.
You wanna try to kill as many Rare and Unique mobs as possible to gain their buffs.
If farming T16, I suggest as soon as you have a lot of buffs on you, run to the boss and kill it right away, then go back and clear map, loot.
If you don't have any HH/Inspired buffs, you will NOT be able to kill a T16 boss.
If you want more DPS, you can swap Ancestral Call/Multistrike > Damage on Full Life/Elemental Focus/Slower Projectiles/Increased Critical Damage.
You can also swap Lightning Strike > Frost Blades.
I've attempted 5 x Emblem Carry a few times and I was able to get within 1/2 a row of Full Loot, so with a bit more practice I am sure I can get it. Be VERY careful and patient at the start of the fight, and avoid bosses until you have enough HH/Inspired buffs to kill them quickly.
-::- What else do I need to know? -::-
Masterful Form Ascendancy: We lose 2% Chance to Hit (98%), but gain max 6 Endurance Charges + more duration on them and Frenzy Charges.
Endless Hunger Ascendancy: Life leech + Bleed Immunity.
Precision and Mana Reservation: Import your toon into PoB and lower the lvl until the minimum to reach 100% Chance to Hit. For me that's level 7 or 12 depending on the Beltimber I'm using.
Greater Multiple Projectiles: Another option to consider that gives 20 Projetiles in MF and 17 in Mapping.
For open maps like Glacier, Lightning Strike is better; for smaller area maps like Alleyways, Frost Blades is better.