Adaptation

 is a Warframe mod that grants damage resistance to the last damage type received to the player by 10% for 20s. This effect can stack up to 90% resistance.

Tips

 * It may be beneficial not to rank up this mod on Warframes which can afford to take multiple hits already, as the mod cost is minimal when at rank 0. As the maximum attainable resistance remains the same regardless of the mod's rank, the only benefit from ranking it up is the rate at which the resistances are gained and the duration of each stack. The difference is that from rank 0 to rank 10 the resistance % per attack and the duration both double, though the mod cost increases by 10.
 * This mod is most effective on naturally durable frames such as Valkyr, Inaros, and Atlas. Note that abilites like Nezha's Warding Halo and Rhino's Iron Skin are not affected by the damage resistance granted by this mod.
 * However, the damage resistance does affect shields. Frames with naturally high shields can take advantage of the recharging capability of shields, their high capacity, and the damage resistance to repeatedly weather fire from large numbers of enemies.
 * This mod appears to prevent, or give a chance to prevent, status effects from the damage types that the user has accumulated resistances to. Requires testing.

Bugs

 * When  damage from Sentient enemies or  damage from  procs is taken,  adaptation is granted. This, however, is a visual placeholder for Tau and True Damage adaptation, and still applies as normal.
 * Some enemy attacks will instantly max your resistance to 90% to that damage type, such as a Heavy Gunner hitting you with her weapon when you get close, or her ground slam.

Patch History
Adaptation Adaptation