With that math in mind, if you want your deck to reliably make 4 land drops in the first 4 turns of the game, you should start with 36-39 lands and tweak from there
The starting stats are bad, but this can quickly grow and it's attack trigger can help aggro decks get in for lots of damage early
Looking beyond cards that directly reference +1/+1 counters, these decks can and should make ample use of cards that care about modified creatures
Before moving on, however, I have to point out that this strategy is not nearly as effective as it once was due to Maui Half-Shark
Falco Spara, Pactweaver Gilded foil $12 You might run out of things to do, but with just a couple of counters around, you can do it all
With cards like Whirler Virtuoso and Aethersphere Harvester, its easy to have sinks for your Energy use that are relevant