If an ability triggers "whenever you tap" something for mana and produces mana, that triggered mana ability won't be affected by Nyxbloom Ancient
(6/6/2025) Look at each creature as it exists on the battlefield, taking into account continuous effects, to determine whether any triggered abilities will trigger multiple times
Vein Drinker [Vampire]: From Shards of Alara
Kenrith, the Returned King If Queen Marchesa is a good commander for a theme deck around knights, then Kenrith, the Returned King is the perfect commander for it
Note that's not just dorks or our stuff or permanents but players too
I learned this the hard way years ago when my first Dragon deck looked powerful on paper, but stalled every game because the commander did not support the tribe properly