Blitz Leech — ruling 1

Blitz Leech’s ability removes all counters from the target creature before state-based actions are checked to see if that creature should die. For example, a 2/2 creature with a flying counter on it will lose that counter while it’s a 0/0 creature before it dies.

Blitz Leech : règles, fonctionnement et interactions (MTG)

Blitz Leech is one of those cards players keep asking about. Here is, in plain words, what its official text says, the rulings published by Wizards of the Coast, and the combos players actually run.

Official card text

Flash When this creature enters, target creature an opponent controls gets -2/-2 until end of turn. Remove all counters from that creature.

How it works : Blitz Leech

Original English text — Wizards of the Coast / Scryfall

#1April 17, 2020· Wizards of the Coast
Blitz Leech’s ability removes all counters from the target creature before state-based actions are checked to see if that creature should die. For example, a 2/2 creature with a flying counter on it will lose that counter while it’s a 0/0 creature before it dies.
No other card is named in this ruling.