With Zinnia, Valleys Voice, you can give all your creature spells offspring for two generic mana, letting you make a 1/1 token copy of each creature spell you cast
Having said this, we can already see a scenario where detrimental counters (such a finality) can be mitigated in impact through Tiduss first ability
This is very easy to do in Commander where you have access to so many walls and single-target removal
Imposter Mech is a great one for two mana, but if you want an interesting mana rock to try, you can look into Machine Gods Effigy
The other massive change to the way I build decks is the existence of EDHREC
When Nethroi mutates, you return any number of creature card(s) with total power 10 or less from your graveyard to the battlefield