The phrase too-specific might sound like a backhanded insult, but putting down something early that synergizes with your gameplan and consistently refreshes your hand is going to provide you way more value over the course of the game than a simple mana rock ever will
Don't swap a Mew worth $500 for a Snorlax worth $50 just because you like the color, and if you are the one with the Snorlax, don't take advantage of someone on the playground who doesn't know how much their Mew is worth
All you need is to have your Commander on the field and you can cast this instantly, for free
Cryptic: While I don't have much to elaborate on the role of the named Tyranid human characters, I think the deck did a neat job translating Genestealer Cults into the card game and I wanted to make a few remarks about that
Since this effect is permanent, not only does this give a massive win condition via buffs, but Knowledge is Power also makes your instant speed draw effects have a lot more versatility
Farhaven Elf and Yavimaya Dryad play the part of cards like Cultivate, but instead of the extra land you get a body you can sacrifice