In addition to the old effect this card now "prevents the improvement of any axis on-card countdown marker". The majority of axis on-card countdowns are used to establish the duration of some desirable effect, so clearly they won't be targeted. The only axis card I can see where the countdown is analogous the HQ/city countdowns is Winter Preparations which could only be played well before the start of Barbarossa. So this effect of Scorched Earth seems completely useless. What am I missing?