Augmented ISOs were introduced to Marvel: Avengers Alliance in 2014 as a new way to upgrade heroes. These ISOs attach to specific powers and augment those powers. Two types of unrestricted A-ISOs exist. The basic types attach to a specific power type and have the “Powerful”, “Charged”, or “Focused” prefix, which improve damage, critical chance, and hit change respectively. These ISOs can be purchased or can be randomly acquired by completing deployments in season 2. The advanced types can only be purchased with gold in the store and have more intricate abilities. The following guide will give you all the information you need about unrestricted augmented ISOs in Marvel: Avengers Alliance.
Pugilist A-ISO, 10 Gold – This ISO will only attach to an unarmed power and gives it exploit combos if it doesn’t already have that ability. The cost is rather prohibitive for the benefit, but it is just barely worth on Tag Team for Quicksilver, especially if he is also equipped with the Bruised E-ISO.
Gracious A-ISO, 5 Gold – Gracious causes a buff power to also restore stamina to all allies. Most buff powers are used in the opening round of battle and not used again, but a few heroes use them more regularly. At a low cost of 5 gold, this is a good deal when placed on Protection Protocol on Rescue or Vigilance on Heimdall.
Maddening A-ISO, 5 Gold – This causes a psychic attack to apply weak mind. Psychic attacks already deal very good damage because they ignore defense, so this benefit isn’t that great. You might consider it for Phoenix, but it really isn’t worth 5 gold.
Sorcerous A-ISO, 15 Gold – This is very expensive for a reason. It makes the equipped magic attack stealthy. Given the very high cost, you should probably only purchase this if you regularly use more than one magic character. Magik, Dr. Strange, and Doctor Doom are all good choices for this. Nico Minoru is not.
Automated A-ISO, 15 Gold – Automated causes the equipped tech attack to apply tech upgrade to the hero. With the possible exception of Iron Patriot, no tech hero is worth spending 15 gold to upgrade.
Vorpal A-ISO, 15 Gold – This is a waste of gold. The equipped slashing attack will gain ignore defense. That buff is not good enough and the game has plenty of ways to negate defense.
Ionizing A-ISO, 10 Gold – This is a very good A-ISO to own in general. It attaches to an energy attack and makes that attack apply radiation exposure on hit. About half the heroes in the game have an energy attack. So, for 10 gold, you can get this benefit in almost every battle.
Sniping A-ISO, 10 Gold – The Sniping augmented ISO causes an equipped gun attack to gain guaranteed hit, which lets it ignore avoidance abilities. Most of the heroes with gun attacks don’t really need this, but it is a great ISO to attach to Personal War on Ares.
Erupting A-ISO, 5 Gold – If you regularly play with Captain Britain, this is a must-buy ISO. It will allow a ground attack to hit flying units. Most of the other characters with ground attacks in the game aren’t worth spending 5 gold on, with the possible exception of Doctor Doom.
Cooperative A-ISO, 15 Gold – Cooperative will turn a summon attack into a quick action once per battle, but add a cooldown. If this didn’t have the penalty, it would be amazing. Due to the penalty, the only possible good choice for this is Doctor Doom, and even that is questionable.
Aiming A-ISO, 5 Gold – Almost every hero in the game has a ranged attack, so if you want to spend 5 gold for a general use ISO, it won’t be wasted. Still, lock-on is a weak ability to add to an attack, so you are better saving your gold.
Pulverizing A-ISO, 10 Gold – Pulverizing applies wide-open when the equipped melee attack hits. This is essentially identical to Aiming, except for melee attacks, and costs more gold. If you don’t think Aiming was worth the cost, this definitely isn’t.
Basic Types (Powerful, 30 CP; Charged, 20 CP; Focused, 10 CP)
Artillery – Most guns hit multiple times, making the focused variant mostly useless. Both powerful and charged are handy, especially on War Machine.
Ballistic – Almost every hero in Marvel: Avengers Alliance has at least one ranged attack. If you are willing to regularly swap ISO, these are great to own. Put focused on single target that only hit once and put the other two on attacks that hit multiple targets.
Blackbelt – Blackbelt only works on unarmed attacks. Hulk is a particularly good choice for all three types as is Juggernaut if you own him.
Bladed – Bladed works on slashing attacks. Geirr for Valkyrie is a particularly good choice for focused, while any of Wolverine’s attacks greatly benefit from charged.
Eldritch – Eldritch affects magic and summon attacks. Due to a slightly low accuracy, Arcane Blast on Scarlet Witch is a good choice for focused. If you own Magik, put powerful on Stepping Disc, because it can’t miss.
Elemental – This A-ISO works on a large set of powers types. If a power has the fire, electric, ice, or elemental description, this is useful. Use these for elemental heroes like Storm, Iceman, or Human Torch, so you can save more generic options like Ballistic for other heroes.
Kinetic – Kinetic works on kinetic and sonic attacks. Very few heroes have these attacks. Best to save these for Gambit if you own him.
Martial – Martial will work on any melee attack. A few attacks are melee with no other descriptors. These are rare, but try to reserve Martial for these attacks, unless you regularly swap around ISOs.
Mechanized – These ISOs apply to tech powers. War Machine will probably be your top choice for these, since he is one of the best tech heroes. Don’t make the mistake of putting these on Cable. They will be useless when using psychic abilities.
Radiant – Radiant ISOs work on energy attacks. The vast majority of the energy attacks in the game are also ranged attacks, so you can pretty much treat these as slightly less versatile versions of Ballistic.
Tectonic – There is no charged version of tectonic, which only works on ground attacks. The only heroes that are worth it for these ISOs are Doctor Doom and Captain Britian.