Also if he only had 2, then they will have down time. Especially when all AM is used, So get light frigates, get the steal antimatter upgrade.. and steal his. 

Bombers are also great against them, and you'd hardly need many for that size of a threat.

Getting some yourself would be a good idea. However again, against 2 using only the shields to outlast and tank damage whilst it's up would be fine. 

All points are good, just wanted to mention that while the Disciples might counter the Iconus, he is going to lose them pretty fast against massed Illums, which is what the other guy reportedly had.  And the flak was to discourage corvettes raiding his carriers, not bombers.  He said he was being harassed by corvettes.

Due to illums attack arc, they dont really counter, especially when focusing other targets

lol

Repulsion can't move.

Kite your fleet (Attack long range with Bombers).

Jump your fleet (Get him to consume his AM).

Use a Dunov (it's AOE EMP Blast removes AM from infinite targets in range).

Use a Kortul (it's OP with passive Ability disruption and AM removal).

Use your own Guardians.

Use Stilakus Subverter's Distortion Field.

Lure him to attack where you have the advantage - Planet with Starbase and PJI... Starbase with Meteor Storm. Starbase with BRB. Vasari Starbase - Can't be repulsed.

silly things you can try...

Get Illuminator ability that clones the ship. Set up a macro to launch ability 'a' for all Illuminators. Launch phantom illuminators at repulsion fleet.

Mass Hoshiko's with demo bots to counter any frigate fleet they have while they use repulsion.

Mass Domina's with Disable and target Guardian's before you send fleet in.

Get Vasari Mine Layer and lay mine field to area you are going to kite too. (make sure you do it ahead of the pursuing fleet so the mines have time to set).

Get Advent Mine Layer and lay mine field to area to are going to kite too. (Make sure you do it ahead of the pursuing fleet so the mines have time to set).

Set TECH minefield on adjacent planet and try to get Advent to jump/follow you.

If your Vasari all you really need is massed Carriers with Bombers. Guardian's have a low hull to shield ratio and die quickly to OP phase missiles.

If your Tech all you really need is massed Carriers with Bombers. Takes a bit longer than Vasari but still allows ranged attack.

If your Advent all you really need is massed Carriers with Bombers. Takes a bit longer than Vasari but still allows ranged attack.

On the contrary, I think it is more useful now since it can keep enemy titans at bay or trap them for a kill...

Isn't that the definition of a counter? To prevent, oppose, to answer or answer a move by another in response. To many quit after the first battle. There's usually time in sins to regroup, adjust or change the odds in your favor. Learning how to scout and change the odds to your favor is an important aspect of this game. 

And if they had time to research 3 shield, guardian and repulse then you should be able to craft something yourself. Considering how long it takes advent to siege a world you will usually have time to come up with something even if they surprise you. 

A poor choice of words mate. To prevent is not to cure and a counter is a cure to the repulsion outbreak. Once its hit then there is very little you can do at which point to will suffer heavy looses that can make you loose the game before u adapt your fleet composition.

A prevention is of-course massing bombers, using fully researched subverters and overseers. 

Guys cmon there is nooooooo counter, you are literally are dooomed or have to jump. The amount of "o"s represents the futility of trying to find a conventional counter.

The obvious choice for the Guardian/repulsion counter would be to micro a Vasari Kortul with weapon jamming ability toward the offending ships, jam weapons when in range and then stage a timed attack with other, faster ships. 

As long as no flak ships, or other more powerful cap ships were in the area, this would be a good tactic to use against Advent cruisers with spacial abilities.

Now, what to use against a Vasari egg at say, level 5....Hmm..