When you dont, you still get a Wind Drake with Toxic 1
END STEP White has a lot of ways to draw cards, and you really shouldnt have any issues keeping up if you build your deck right
#1 Japan Showcase Llanowar Elves #2 Japan Showcase Twinflame Tyrant #3 Japan Showcase Think Twice #4 Japan Showcase Day of Judgment #5 Japan Showcase Herald of Eternal Dawn #6 Japan Showcase Kaito, Cunning Infiltrator #7 Japan Showcase Bloodthirsty Conqueror #8 Japan Showcase Progenitus #9 Japan Showcase Doubling Season #10 Japan Showcase Muldrotha, the Gravetide Thats some spectacular artwork, if I do say so myself
It's not easy to find a good guide to travel in a Death World
The added redundancy doesnt hurt either
At their core, Ramp decks generate a tremendous, mostly permanent, mana advantage which they leverage to kill the opponent