Even with just the normal draws, youre plus six cards in a turn cycle (or plus eight in a five-player game)
Here is what 20,768 tracked games show, ranked by win-rate lift over baseline using the lower bound of the 95% confidence interval, so a thin sample can't top the chart
Weve seen a couple in the past, like Mythos of Illuna and Will of the Temur, but overall, its an incredibly rare effect
1 | Sephiroth, Fabled SOLDIER Sephiroth, Fabled SOLDIER Mana Value: 2B Rarity: Mythic Rare Type: Legendary Creature Human Avatar Soldier Stats: 3/3 Card Text: Whenever Sephiroth enters or attacks, you may sacrifice another creature
This ones good enough to break containment and see play in other formats
After all, having the best cards and the best decks allows you to be the best at your local FNM and beyond