Burn spreading across a board

Contents

Question: Can Burn spread out of control?
Answer: No. Each spread copies the post-decay amount, so every copy is weaker than the Burn that threw it.

900.33aOn each tick a Burn deals its current amount, then loses 50% of it, rounded down but never less than 1.
900.33bIf the Burn survives the decay, it has a 5% chance to copy its post-decay amount onto one other enemy of whoever applied it. It copies rather than moves, so the parent keeps its own Burn.
900.33cThe recipient is not required to be adjacent. The whole side is ranked by footprint Manhattan distance and only the units tied at the nearest distance are eligible, then a single Focus-weighted roll picks one of them. An isolated Burn therefore still reaches the next unit out rather than fizzling.
900.33dA child is always weaker than the parent that threw it, which bounds each lineage. The board as a whole burns out because decay halves a Burn far faster than the 5% chance copies it.
900.33eA single unit's Burn is hard-capped at 999 regardless.
900.33fBecause decay truncates, an odd Burn rounds against the defender: a Burn of 3 decays to 2 and can hand out another 2.
900.33gRelentless blocks a spread that lands on a Relentless unit, but does not remove it from the candidate pool first. A Relentless unit can win the Focus roll and the spread is then refused outright — it is not re-rolled onto someone else. This is the opposite of Harvest, where Relentless units leave the pool before selection.
900.33hA side under a "Burn cannot spread on allies" aura, such as Brushfire Ibex, never spreads at all — the roll is refused before a recipient is looked for.