Evo Defense Assault Guide: Mech Count, Affix Order and the 5-Mech Threshold

Assault is not a board-wide damage hero. It is a single-carry system that borrows the board to feed one unit. Players who treat the chargers as a second damage source keep losing because the math does not support it: only the highest-star Assault fires, and the rest exist to charge it. Get that straight and the rest follows.

Only the highest-star Assault fires

The standard single-carry setup is one high-star Assault plus seven chargers kept at one or two stars. The chargers are not separate attackers. They pass their power into the highest-star Assault, and the carry does the shooting.

Two consequences follow. First, charger stars do not add beam damage, so starring a charger is spending on a unit that never fires. Second, two high-star Assaults compete for the same role.

If you are about to raise a charger above two stars, stop and put that copy into the carry instead. If you own two Assaults at similar stars, pick one as the carry and treat the other as fodder.

The reason to run seven bodies is not their damage. It is that more mechs on the field raise the carry's barrage count, which is what the evolution thresholds and the skyfall trigger count.

Five mechs, not eight

The evolution ladder is 2, then 4, then 5 mechs. The old eight-mech figure belongs to a pre-rework version and is obsolete. With a ring-type totem that reduces the required mech count by one, the ladder becomes 1, 3 and 4.

That makes the ring totem more than a stat line. If you are stuck one mech short of the next evolution, chase the count-reducing totem before you chase more copies of the hero. It shortens the whole climb.

The reverse rule matters too: if your notes still say eight, recount. Building three extra mechs to satisfy a threshold that no longer exists wastes the exact resources the single-carry plan is trying to concentrate.

Beam damage follows the carry's stars

Beam damage is tied to the carry's star level, not to the number of chargers. Community sheets list it as 329% at one star, 658% at two, 1086% at three and 1316% at four.

The level nodes layer on top:

• Level 5 unlocks skyfall support, which fires after a running count of barrages.
• Level 10 grants the fission beam from the start of the run.
• Level 15 adds 10% damage per evolution, and that bonus is multiplicative rather than additive.
• Level 20 adds two barrage shots at the start, which is the single largest quality-of-life jump.
• Level 25 gives a 40% attack speed boost for the opening 90 seconds. The official Assault profile and two of the three community sheets credit attack speed only; one panel table also lists attack at the same +40%, so treat the attack half as unconfirmed.
• Level 30 adds 10% to all damage.

If level 20 is within reach, take it before any side upgrade. If level 15 is close, take it first because the multiplicative bonus applies to every later evolution.

Affix order and the totem slots

The working affix order runs skyfall first, then resonance at 70% barrage, then overcharge at 100% total damage, then weak point, then holy contract, then multi-shot. Multi-shot plus two is worth more than a third overcharge, so the last slot is not simply "whatever is left."

One community sheet ranks multi-shot earlier than this. Both readings agree that extra barrage shots beat another copy of an already-stacked multiplier.

Totems are slot-bound, not free-floating stat sticks:

• Horn: each bullet adds 1.2% of the target's max health as damage.
• Necklace: a 60% pierce weight, effectively one extra pierce.
• Ring: reduces the mech count needed for evolution.

If you own no resonance source, that is your next reroll target before any cosmetic upgrade. If your horn is sitting on a different slot, move it before you reroll its numbers.

Inside the run: count, affix, count

The in-run order is not damage first. Push the mech count to the second evolution, then take two or three affixes, then push the count again for the final evolution. Mech count outranks affixes early because the evolution changes what the carry is, while an affix only changes a number.

If a choice offers a mech versus a small damage affix before the second evolution, take the mech. If you already have the second evolution, take two or three affixes before you go back to counting.

Swordsman is the other carry, with a different pivot

Swordsman does not borrow the board the same way. Its level 10 node adds 40% to whirlwind damage and 10% to its trigger chance. Level 15 unlocks bloodthirst and adds 10% crit. Level 25 gives infinite slashes. A slash is four hits, each at 16% physical damage plus 10% crit.

The pivot people miss is between whirlwind and qi slash. Whirlwind does not scale with crit; qi slash does. Community reports put the crossover at Swordsman level 15 plus the cat-god totem, which adds 20% damage against targets below half health.

If your Swordsman is below level 15, stay on whirlwind and do not split affixes. If it is level 15 and you own the cat-god totem, test qi slash on a single-target stage.

Use the two carries for different stages. If the stage is one thick boss in a narrow lane, Swordsman fits. If the stage spreads enemies across the board or sends fliers, keep Assault and fix pierce or attack speed rather than swapping heroes.

FAQ

Why does my beam damage stay the same when I star a charger?

Because chargers do not fire. Only the highest-star Assault attacks, and beam damage scales with that carry's stars: 329%, 658%, 1086% and 1316% across the four star levels. Charger stars only feed the carry.

Is eight mechs still the evolution threshold?

No. The current ladder is 2, 4 and 5 mechs, and a ring totem that reduces the required count turns it into 1, 3 and 4. Eight is a leftover from an older version and building for it wastes three slots.

Should I switch from Assault to Swordsman?

Only when the stage fits the job. Swordsman is stronger into a single thick target in a narrow lane and weaker against scattered or flying enemies. If your Assault run fails on spread waves, fix pierce and attack speed before changing carries.