The benefit for casting those higher-costed creatures is arguably greater, though, as Helga draws a card, gains a life, and gets a +1/+1 counter for each of these creatures cast
Whenever another Shrine you control enters, search your library for a basic land card, put it onto the battlefield tapped, then shuffle
(10/2/2025) If an artifact or creature you control has a mana ability with in the cost, activating that ability while casting a spell or activating an ability with waterbend will result in the artifact or creature being tapped before you pay the spell's costs
1 Mufasa, Ruler Of Pride Rock Enchanted - $280.21 One of the best cards released in 2024 just so happens to also be one of the most valuable ones
So if Geralfs Messenger has returned from the graveyard with a counter, if you put a -1/-1 counter on it it will have no counters at all
Entering tapped alone is quite a big deal these days, even in Commander