Nerfed shrooming cards?

[Ponpon]

Last days I've been testing some "Chance to drop item" cards. Really are not viable to farm plant/mushroom all except plasma cards.I checked RMS to find the normal drop rate but I get nothing from them. I read at main that Tengu/Blazer cards were nerfed. Is this true?
Are there good cards for shrooming out there?
P.S. I dont have resources to buy/farm a lifedrinker card
EDIT: I dont know If this is the right place to post.