Hydroid Krasis — ruling 1

Hydroid Krasis's first ability triggers as you cast it, and that ability resolves before the spell itself. It resolves even if Hydroid Krasis is countered.

Hydroid Krasis : règles, fonctionnement et interactions (MTG)

Hydroid Krasis 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

When you cast this spell, you gain half X life and draw half X cards. Round down each time. Flying, trample This creature enters with X +1/+1 counters on it.

How it works : Hydroid Krasis

Original English text — Wizards of the Coast / Scryfall

#1January 25, 2019· Wizards of the Coast
Hydroid Krasis's first ability triggers as you cast it, and that ability resolves before the spell itself. It resolves even if Hydroid Krasis is countered.
No other card is named in this ruling.