These decks have all the cards you need to immediately start playing
Consider adding cheap staple cards like Kodama's Reach, Cultivate, or something like Emergent Sequence, Greenseeker (it also discards you a creature that you can pick up with meren at the end of turn), Primal Growth (good sac outlet too), Dawntreader Elk, Deathsprout, Diligent Farmhand, Rampant Growth, and notable Yavimaya Elder
This list is of cards that I've seen and played in my own games this year
They all offer something a little extra, and Conspire is going to be worth it most of the time if your deck goes wide enough
The counterplan against M Ampharos EX is also simple: sacrifice the active, bring out something that can one-shot
These terms aren't just mysterious to new players, they're unclear