more-powerful cards are generally the rarest
If you've got four untapped Plains and you're waiting to make tokens, you can flash in Collector in response to a Windfall or just a big X draw spell
Remember Abiding Grace
The Forest Version 36 Spells Mox Opal Chrome Mox Lotus Petal Lion's Eye Diamond Lotus Bloom Mana Vault Tinder Wall Elixir of Immortality Birds of Paradise Goblin Welder Expedition Map Chromatic Star Faithless Looting Gitaxian Probe Preordain Conjurer's Bauble 5x Talisman Simic Signet Demonic Tutor Land Grant Spellskite* Nature's Lore Balance* Tinker Intuition Elvish Spirit Guide Simian Spirit Guide Thirst for Knowledge Goblin Charbelcher Daretti, Scrap Savant Thoughtcast Chancellor of the Tangle 4 Land Breeding Pool Stomping Ground Taiga Tropical Island To fetch out your lands you have Land Grant, Nature's Lore, Expedition Map and Intuition
On its planeswalker side, it can weaken attackers, recur instants and sorceries, and even draw half your deck while it removes your hand size limit
With Thrumming Stone, Marrow-Gnawer, and tight removal it can push into higher-power pods, though its not a cEDH staple