Reaction
Reactions are an uncommon stat found on a handful of cards. They serve as alternative ways for these cards to trigger besides their 
Counter reaching 0. In many cases, cards with Reactions don't even have Counters at all, and thus can only trigger via the Reaction.
Information and Strategy
Reactions are found on both player and enemy cards. Unlike the usual Counters, a card with a Reaction will trigger immediately whenever some condition is met. A reacting card triggers identically to one triggered by its Counter, but some reactions like the Smackback keyword cause the card to trigger against a specific target. If such a card has 
Frenzy, it will stop attacking if the target is killed in the middle of Frenzy attacks. However, if it also has Barrage, Aimless, or Longshot, it no longer triggers specifically against its target. It will attempt to trigger against the intended target, but it will also abide by its ability's targeting; for instance, a card with Barrage and Smackback will react against the entire row that its attacker occupies. Any card that has one of these abilities can use all its Frenzy in one reaction, even if the intended target is killed partway through the attack.
Although Smackback is the most common Reaction, it is far from the only one. All Reactions are written in orange ability text to indicate what triggers the Reaction, while any other abilities the card may have are colored normally. For instance, Mega Mimik has the orange text "Trigger when an ally in the row attacks," indicating its trigger condition, and "Lose 1 
Scrap" in normal text, indicating that this is an ability unrelated to what causes the Reaction.
Preventing Reactions
The nature of Reactions makes them exceedingly dangerous to offensive Companions, who tend to have low 
health. A card with Smackback is theoretically able to damage any card on the player's field regardless of position, as long as that player card hits it. There are three different ways to prevent a card's Reaction from working, even if the conditions are met.
Snowed cards can never trigger under any circumstances, and this prevents their Reactions from working. This includes if the card would react to a hit that inflicts it with Snow; for instance, Snoof attacking a Spike Wall will not trigger the latter's Smackback.
Inflicting 
Ink on a card negates all its effects, including any abilities it has that would trigger Reactions. If the card has just a Reaction and no Counter, it will never be able to trigger while Inked. Like Snow, the card will also not react to any hit that inflicts it with Ink. For instance, Maw Jaw triggers when hit by anything. Using the Flask of Ink on it counts as a hit (since the Flask of Ink has an 
attack icon), but because it Inks Maw Jaw it cannot react.
Finally, a card cannot react if it is killed by whatever would cause it to react. This sets counterattack Reactions apart from 
Teeth, which will damage an attacker even if the card with Teeth is killed by the hit.
Reaction Interactions
Reactions are separate from any non-triggering ability that activates under a specific condition, and those abilities can still activate even if the card is Snowed. For instance, if a card has both the 
Punchfist Charm and 
Tiger Charm attached, it will gain Smackback and "Gain 1 Teeth when hit." However, if this card is Snowed and thus cannot trigger via Smackback, it will still gain Teeth when hit by something. If this card becomes Inked, both of these abilities are negated, and it will not react when attacked or gain Teeth when hit.
Reactions trigger in between Frenzy attacks, so counterattack reactions like Smackback will interrupt attackers with Frenzy before their Frenzy attacks finish (which may even kill the attacker before they finish their attacks). Similarly, Mimik and Mega Mimik trigger in between hits if the attacking ally in the row has Frenzy. Notably, this will not prevent the reacting card from using all its Frenzy; for instance, if Foxee attacks a Warthog that has gained Frenzy via the Wild ability, Foxee will hit the Warthog once, and then the Warthog will react against them with all of its Frenzy (or as much as is needed to kill Foxee).
If a card's Reaction causes it to trigger against multiple specific enemies at once (such as if Snoffel inflicts the entire enemy field with Snow while Kobonker is on the field), the card will trigger against each appropriate target.
If a card with Smackback attacks another card with Smackback (or if the cards have similar counterattacking reactions, such as Maw Jaw), the attacked card will hit its attacker immediately, which will then trigger the attacker's Reaction. This cycle of repeated attacks will continue until one or both of the cards is destroyed.
Checking if a card's 
Overburn should cause it to explode is higher-priority than checking its Reaction. If a card would react to something that also causes its health to be lower than its Overburn (whether by inflicting Overburn or damaging it such that its health is lower than its Overburn), it will explode before it gets the chance to react. If the card survives its own explosion, such as with 
Block, it will react after the explosion.
Resolving a card that is being played from the hand is also higher-priority than checking Reactions, so a card will not attempt to react until all the played card's effects are applied. For instance, if Maw Jaw is hit by the Berry Blade, which deals damage and then heals the front ally, Maw Jaw will not react until the ally is healed. This property is also what prevents cards from reacting to hits that inflict them with Snow or Ink.
Cards and effects that interact with Reactions
| Player cards with Reactions | Player effects that interact with Reactions | Enemy cards with Reactions |
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