ability right after a successful challenge
If you roll a die for any other reason (to simulate a coin flip, to see which movie to see later tonight, because you're bored), that roll doesn't count
Its like a Genesis Hydra that you have to cast for X=5, and it only works if have a graveyard full of creatures, and its a little more restricted in what it can find, but it has reach and seven toughness
Card Name: Ariel Spectacular Singer Cost: 3 Languages: English (EN), German (DE), French (FR) Role: Spectacular Singer Type: Hero, Princess Faction: Storyborn Abilities: Singer 5: This character counts as cost 5 to sing songs
The stats aren't worth the cost, but its enter-the-battlefield ability is a game ender: all creatures you control gain trample and +X/+X until end of turn, where X is the number of creatures you control
If it had in its mana cost, X is 0 when determining its mana value