Knocking out a creatures abilities can often be just the thing you need to pick yourself back up for a turn
It's amazing in the deck, but if your playgroup hates it then replace it for Daybreak Ranger at a similar price point
Parker Luck is Keen Duelist, except you can pick two opponents to ensure they both lose life, if you get to the end game with life totals already low
Bringing stuff back as a 1/1 Spirit with a finality counter isnt the absolute best rate for this effect especially compared to my favorite Redemption Choir but its still really good with haste from the CZ
With two connected abilities, Xavier Sal can tap to either remove a counter from a permanent you control to populate, or to sacrifice another creature to proliferate
The only problem is this format doesnt have a major life gain theme, and the Feast doesnt gain you enough life on its own to get it done