Flash
Flying
You may cast colorless spells and artifact spells as though they had flash.
Whenever you cast a spell, if the amount of mana spent to cast that spell is greater than Liberator, Urza’s Battlethopter’s power, put a +1/+1 counter on Liberator.
The third ability applies only to casting spells. It does not, for example, change when you may activate abilities that can be activated "only as a sorcery."
14-10-2022
wotc
The last ability cares only about the amount of mana that was actually spent to cast the spell, regardless of its mana cost.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.