From Archon Arcana - The KeyForge Wiki
Example of a battleline containing 4 creatures

The battleline is the ordered line of creatures a player controls in play.

The far left and right edges of a battleline are the flanks. When a creature is in one of these positions, it is “on the flank” and is also known as a “flank creature.” When a battleline consists of exactly one creature, that creature is on both flanks.


Creatures enter play on the flank of their controller's battleline (the active player chooses which flank).

A creature‘s “neighbors” are the creatures to its immediate left and right in the battleline. These creatures are also said to be “adjacent.”

Each time a creature leaves play, the battleline shifts inward to close the gap.

KeyForge Master Rulebook v17.3 March 2024