This is especially good against Silent Arbiter and similar effects
Whether you sacrifice Treasures, crack Clues, or lose creatures in combat, you can have target opponent lose 1 life
It is the fourth expansion to be based in Ravnica and is the final instalment in the Guild of Ravnica block
More recently, with the return of poison counters in Phyrexia: All Will Be One, Atraxa paves the way for victory just by being on the field.
Online resources like EDHREC are perfect for finding powerful, popular cards you might've otherwise missed, but it's also great to go completely off-piste, figuring out different interactions between niche cards, and building something that's entirely your own
In Standard, this is more likely to be a pure card advantage engine than a combo piece