There were a few Ramp decks during Dragons of Tarkir-Battle for Zendikar Standard, but that was an anomaly compared to Standards before and since
The lethal damage still needs to be assigned , but protection prevents the damage from actually hurting the protected creature
If you want a second opinion on your wording, compare your text to official cards that do something similar
Ironwill Forger Weve seen a concerted effort to improve the efficiency of white aggro strategies in Commander over the past few years
Summon: YojimboSummon: Yojimbo gives you removal, some defense from attacks, and tops things off with some Treasure tokens for a big turn
There are more powerful ramp lands, much more powerful ramp effects, more powerful late game value lands and again, much more powerful value effects on offer