In Sentry mode, Bastion is a stationary powerhouse equipped with a gatling gun capable of unleashing a hail of bullets. The gun's aim can be "walked" across multiple targets, dealing devastating damage at short to medium range.
In Tank mode, Bastion extends wheeled treads and a powerful long-range cannon. The cannon’s explosive shells demolish targets in a wide blast radius, but Bastion can only remain in this mode for a limited time.
It is important to note, that the amount of “strong against” characters is not reflective of this characters strength in battle. The "strong against" and "weak against" list is supposed to show that there is a light/strong advantage or disadvantage against certain characters.
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