Because my only bet is this, i have mortar: toxicity unique rune on mortar but even if the unit is a “Normal” unit (with no elite boost), it has this visual “elite” background like it’d have a boost but it doesn’t…
It doesn’t make any sense also because we are used to know that pink means boosted and not runes-boosted. If i see this it seems it could have corrosion caster boost or putrid prowler boost.
In my opinion it shouldn’t have an elite background, if you want to make something cool instead, why not give it rather a fantastic golden background only when it reaches lvl 6 rune.
Would be glad to know if you are aware of this or not. Thank you
device: on Windows 10 Home, Version 1909, os Build: 18363.693
how often it happens: always when you place mortars in waves with unique rune applied.