Surge Node — ruling 1

Surge Node can be the target of its own activated ability. Because it doesn't “move” a counter, the ability will remove a counter from Surge Node and then put one onto it.

Surge Node — ruling 2

Once Surge Node has run out of charge counters, it remains on the battlefield.

Surge Node : règles, fonctionnement et interactions (MTG)

Surge Node 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

This artifact enters with six charge counters on it. , , Remove a charge counter from this artifact: Put a charge counter on target artifact.

How it works : Surge Node

Original English text — Wizards of the Coast / Scryfall

#1August 7, 2020· Wizards of the Coast
Surge Node can be the target of its own activated ability. Because it doesn't “move” a counter, the ability will remove a counter from Surge Node and then put one onto it.
No other card is named in this ruling.
#2August 7, 2020· Wizards of the Coast
Once Surge Node has run out of charge counters, it remains on the battlefield.
No other card is named in this ruling.