There are some more minor options in Red and Black utilizing more of a ritual-style ramp effect, but outright ramps is a bit more of a rarity, especially on ETB creatures
In that case, pack lands more towards the 33-35 range
When you do, exile up to two target cards from graveyards
Starseer Mentor's ability cares whether you gained or lost life this turn, not how your life total changed
Im a big fan of cards that offer choices like these, so I even wrote an article of my own on the subject
Third, it's possible that Wizards knows that the London mulligan rule has potential to be harmful to Modern but has a plan in place to fix the problem, either with aggressive bannings or with the help of new cards coming in Modern Horizons (one long-shot theory is that Force of Will will show up in Modern Horizons , which would suddenly make Modern much more like Legacy and give decks a free answer to degenerate, fast combos)