Falchion Knife | Doppler Phase 4 (Falchion P4) was added to the game on March 15, 2017, alongside the "Take a trip to the Canals" update. The skin is available in the cases "Spectrum" and "Spectrum 2".
The blade and the main part of the handle are painted with metallic paints and adorned with a pattern of translucent wavy lines resembling smoke. The color scheme of the skin uses various shades of blue, brown and black creating gradient transitions. The front and the back part of the handle remain unpainted.
Float Value of the skin ranges from 0.00 to 0.08, which makes Falchion Knife | Doppler Phase 4 available only in Factory New and Minimal Wear condition. At levels of wear close to the maximum, the knife has noticeable scratches and abrasions located along the cutting edge.
The pattern index affects the ratio of colors as well as the location of blue, brown and black areas. Pattern variations with a predominance of blue on the play side of the blade are titled “BTA Blue”. Knives with only blue color on the blade resemble Falchion Knife | Doppler Sapphire and are titled “Max Blue”.
The quality of Falchion Knife | Doppler Phase 4 is Covert. The skin has a StatTrak option and is close to phases 1 and 3 in terms of rarity. The skin belongs to the "Falchion Knife | Doppler" series.
Due to a relatively low price, Falchion Knife | Doppler Phase 4 became one of the most popular and common skins in the “Doppler” series.