A Pillar (ピラー) is a common form of terrain found in Fire Emblem games.
Pillars are always found indoors, usually in large castles or ruins. Pillars are primarily found in the 2D games such as Fire Emblem: The Blazing Blade. Pillars provide +1 bonus to Defense and + 20 bonus to avoid, allowing a unit to take cover to take less damge, and avoid attacks. Pillars act as the indoor counterpart to forests, with identical bonuses. The pillar is also like the forest in that it takes two remaining move tiles (three for mounted units) to go onto or past the pillar.