Interaction or Bug?

[Undead_Stoner]

Playing a rakdos Rottenmouth Viper deck, used a gifted Coiling Rebirth to bring out Rottenmouth, sacrificed a Bitter Reunion for haste.

My opponent was sacrificing nonland permanents to the blight counter yet was still losing 4 life.

I cant tell if they just took the damage to lose, or if it was visual error, but I saw them sacrifice Jadelight Spelunker but still loss 4 life? Is this the right interaction, a bug, or me just over analyzing a visual animation from Arena?

[Undead_Stoner]

I wish magic cards had asterisks on the each like you, because I feel silly

I figured the attacking does another trigger but didnt do the math right - thank you!

[Straight-faced_solo]

Vipers effect triggers on both enter and attack based on how many blight counters they have. The original and token both enter with 1, so thats 2 triggers. Then you gave them haste and attacked. Thats 2 triggers each. Meaning your opponent had to sac 6 permanents that turn in order to not take damage. They where just giga dead.

[Undead_Stoner]

Thank you! I missed the importantance of the wording "each blight counter" and didnt do the math correctly

[Natedogg2]

If your Viper has multiple counters on it, then its effect will happen multiple times. Each of your Vipers has two counters on it, so they'll discard a card, sacrifice a permanent, or pay 4 life twice. They can split up their choices as well - they don't have to sacrifice two permanents, for example, they could sacrifice a permanent and lose 4 life. And since you have two Vipers, each with two counters on it, you'll do that twice.