Floodtide Serpent — ruling 1

You must return an enchantment you control to its owner’s hand during each combat in which you attack with Floodtide Serpent.

Floodtide Serpent : règles, fonctionnement et interactions (MTG)

Floodtide Serpent 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 creature can't attack unless you return an enchantment you control to its owner's hand. (This cost is paid as attackers are declared.)

How it works : Floodtide Serpent

Original English text — Wizards of the Coast / Scryfall

#1February 1, 2014· Wizards of the Coast
You must return an enchantment you control to its owner’s hand during each combat in which you attack with Floodtide Serpent.
No other card is named in this ruling.