Suppose that I'm playing Commander against three other opponents and each of them has five creatures in play.
I own a creature with myriad, such as Broodbirth Viper, which is equipped with Kusari-Gama, and Repercussion is in play. I'm trying to figure out how much damage would be dealt to each of my opponents. To make the math simple, let's say that I spend 14 mana on Kusari-gama's first ability, giving Broodbirth Viper a total power of 10.
Assuming that each of my opponents block with one creature, I'd expect that Broodbirth Viper would deal 10 damage to that blocking creature-- and consequently to the other four creatures that each opponent controls. Then, due to Repercussion, each of those five creatures would do 10 damage to the opponent that controls them. That would be 50 damage, total, to that opponent.
What happens, though, if an opponent blocks with more than one creature? Would each additional blocking creature add another 50 damage to the player that controls it, bringing the total damage up to 100?
The math is the same whether it's one opponent or 3 since they are all individual so ignore the Myriad part.
The answer mostly depends on whether the blockers survive combat. If the opponent has 5 grizzly bears (2 toughness) and they block with all 5 if you assign 2 damage to each then they will die as a state based action before the Kusari-Gama does any damage. You'll still get 10 damage from repurcussion though. If you assigned all 10 damage to just the first bear the situation would be exactly like what you described originally. If you assigned 5 damage to the first 2 bears and none to the last 3 the first 2 bears would die and you'd have 2 triggers that deal 5 damage to each creature the defending player controls. The first would resolve and deal 5 damage to each which would kill all creatures, but the second would do no damage as the creatures are already dead so you'd get a total of 25 repurcussion damage.
Only the original Viper has Kusari-Gama. Only the original will be a 10/3, while the myriad copies will be 3/3s. Only the original will deal damage to other creatures defending player controls (assuming the player being attacked by the original blocks in the first place).
I own a creature with myriad, such as Broodbirth Viper, which is equipped with Kusari-Gama, and Repercussion is in play. I'm trying to figure out how much damage would be dealt to each of my opponents. To make the math simple, let's say that I spend 14 mana on Kusari-gama's first ability, giving Broodbirth Viper a total power of 10.
Assuming that each of my opponents block with one creature, I'd expect that Broodbirth Viper would deal 10 damage to that blocking creature-- and consequently to the other four creatures that each opponent controls. Then, due to Repercussion, each of those five creatures would do 10 damage to the opponent that controls them. That would be 50 damage, total, to that opponent.
What happens, though, if an opponent blocks with more than one creature? Would each additional blocking creature add another 50 damage to the player that controls it, bringing the total damage up to 100?
The answer mostly depends on whether the blockers survive combat. If the opponent has 5 grizzly bears (2 toughness) and they block with all 5 if you assign 2 damage to each then they will die as a state based action before the Kusari-Gama does any damage. You'll still get 10 damage from repurcussion though. If you assigned all 10 damage to just the first bear the situation would be exactly like what you described originally. If you assigned 5 damage to the first 2 bears and none to the last 3 the first 2 bears would die and you'd have 2 triggers that deal 5 damage to each creature the defending player controls. The first would resolve and deal 5 damage to each which would kill all creatures, but the second would do no damage as the creatures are already dead so you'd get a total of 25 repurcussion damage.
Two Score, Minus Two or: A Stargate Tail
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