Early on it is a pretty big tempo setback and late on it is extremely slow to impact the game
"Vanishing N" means "This permanent enters with N time counters on it," "At the beginning of your upkeep, if this permanent has a time counter on it, remove a time counter from it," and "When the last time counter is removed from this permanent, sacrifice it." 702.63b: Vanishing without a number means "At the beginning of your upkeep, if this permanent has a time counter on it, remove a time counter from it" and "When the last time counter is removed from this permanent, sacrifice it." 702.63c: If a permanent has multiple instances of vanishing, each works separately
Theros also brought a few cards that synergize very well with enchantments that make doing an enchantment themed deck all the more worthwhile
A perfect way to turn your card collection into wall art!
In the Scarlet & Violet era, there was a massive uprising of Special Condition-focused decks, especially with the Poison Condition
for the sake of consistency, lets call them NeoA and NeoB respectively