Mighty Servant of Leuk-o — ruling 1

An ability that triggers whenever a Vehicle "becomes crewed" triggers when its crew ability resolves. In this case, it will trigger only if exactly two creatures were tapped to pay the crew cost of the ability that caused it to become crewed for the first time that turn.

Mighty Servant of Leuk-o : règles, fonctionnement et interactions (MTG)

Mighty Servant of Leuk-o 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

Trample Ward—Discard a card. Whenever this Vehicle becomes crewed for the first time each turn, if it was crewed by exactly two creatures, it gains "Whenever this creature deals combat damage to a player, draw two cards" until end of turn. Crew 4

How it works : Mighty Servant of Leuk-o

Original English text — Wizards of the Coast / Scryfall

#1June 10, 2022· Wizards of the Coast
An ability that triggers whenever a Vehicle "becomes crewed" triggers when its crew ability resolves. In this case, it will trigger only if exactly two creatures were tapped to pay the crew cost of the ability that caused it to become crewed for the first time that turn.
No other card is named in this ruling.