While Rest in Peace is on the battlefield, abilities that trigger whenever a creature dies won't trigger because cards and tokens are never put into a player's graveyard
The question is, how often does that additional effect actually impact the game
Conqueror will obviously see plenty of Commander play, but its actually quite well-positioned for Standard too
We have countless dual-color land cycles, Treasure, and card draw, and so I dont think that argument is worth much
(bring your own rankings)
They showed off one of the more famous alternate wincon cards, Approach of the Second Sun, with adorable Tanuki themed art depicting a critter tucking into a second helping of eggs, sunny side up