You need to fill your deck with small creatures with power 2 or less to get the most of this enchantment
The only thing keeping this card as low as it is on our list is simply the mana cost: six is a lot to ask for in cEDH, and while Consecrated Sphinx will win the game if left unaddressed, it wont win the game that same turn in the way that other high-mana investments will (Hullbreaker Horror, Ad Nauseam, etc)
For example, if you control The Ozolith when Parish-Blade Trainee dies, you'll put the appropriate number of each kind of counter onto both The Ozolith and the target creature
The game continues this way until a player flips over one last card placed randomly in the deck before the game starts that reads, The queen is under attack
5 Jace, The Mind Sculptor Wizard Of Barge Variant - $341.58 One of the most powerful planeswalkers ever printed and the boogeyman of Modern for years, the planeswalker Jace, the Mind Sculptor received a special Secret Lair card that was only available to a select few
And for other MTG content, you might enjoy our MTG release schedule guide or our list of every MTG Arena code that still works today.