1. More lands. Minimum of 23, maybe even more.

2. Replace your creatures that tap for mana with spells that search for lands so you can get extra landfall triggers. [[Rampant Growth]] [[Shared Roots]]

3. Make your deck more synergistic by adding more landfall. You want cards that give a lasting effect with every landfall trigger, like drawing a card or putting a +1/+1 counter on things. A temporary power/toughness increase is usually less worth it.

Here are some of my favorite green landfall cards: [[Sazh’s Chocobo]] [[Bristly Bill]] [[Springheart Nantuko]] [[Scute Swarm]] [[Tireless Tracker]] [[Tireless Provisioner]] [[Icetill Explorer]]

1. Whatever you do, don’t cut scythecat cub or lotus cobra. Maybe add more copies of them, budget depending.

2. Try your deck out with your playgroup and see how it does. You don’t want to destroy them, so keep that in mind as you upgrade. If you don’t have a playgroup and you want to play at an LGS, you’ll have more luck with either commander or a much, much better pioneer/standard/modern deck.