Joiner Hero Mechanics No One Told You About

Overview

To be a good rally leader or joiner, you need to understand how joiner heroes work and how their stats are calculated. They can make a huge difference in battle outcomes. A few good joiners can completely change how your rally performs

How Joiner Heroes Work

When you launch a rally, your alliance members can send their troops and heroes. The important part is the first slot hero of each member. That hero is treated as the joiner hero. For example, if you join with [Chenko] [Howard] [Quinn], then Chenko (the fir...

• Each member can contribute 1 joiner skill
• Only the first 4 members who join with a maxed first skill get counted
• If one of the early joiners doesn't have their first skill maxed, then the next player in line can fill the spot

The Damage Formula (Simplified)

Here's the latest simplified version of the damage formula: I've explained this formula in more detail in my article "Lethality, Attack, Defense & Health - What They Actually Do." For now, what matters for joiners is the SkillMod part

• What They Actually Do." For now, what matters for joiners is the SkillMod part

Stacking Joiners: Same vs. Different

Example 1: Four of the Same Hero (Amane or Chenko, 25% each) Four Amanes → bonus effects['DamageUp'][102] = 25 + 25 + 25 + 25 = 100 Four Chenkos → bonus effects['DamageUp'][101] = 25 + 25 + 25 + 25 = 100

• Stacking the same heroes → their buffs just add up
• Mixing different heroes → their buffs multiply, which gives more damage
• Four identical heroes → 2.0 (100% boost)
• Two Amane + Two Chenko → 2.25 (125% boost)

Why This Happens

The math.prod function multiplies buffs if they have different effect\ op values

• Same effect_op → buffs only add
• Different effect_op → buffs compound multiplicatively

Joiner Heroes, Their Effects & Identifiers

Here's a list of joiner heroes and how their first skills are counted: If you stack joiners with the same effect but different effect\ op, you'll get a stronger SkillMod than if you use heroes with the same effect and same effect\ op

• Fahd: OppDamageDown (201)
• Saul: DefenseUp / DefenseUp (112 / 113)
• Hilde: DefenseUp / DamageUp (112 / 102)
• Eric: OppDamageDown (202)

Tests

I ran a few tests on my mini accounts to show how Lethality and Attack joiners stack together. I kept the stats and troops exactly the same for both the attacker and defender — the only thing I changed was the joiners. In the first test, I used 2 Yeonwoos a...