A Super Troop based on the Valkyrie is called the Super Valkyrie. If the Valkyrie reaches at least level 7, it can be unlocked by boosting the Valkyrie.
Strategy
Offensive: To maximize the anger effect of a Super Valkyrie, it is advisable to send her alongside other soldiers. When you run out of haste or rage spells, or are in a tight spot like next to a town hall, this can be really useful. This is also because, in comparison to a real wrath Spell, the Super Valkyrie’s wrath effect is far smaller, meaning that in order for your troops to use it, they must be closer together.
Defensive: Since Super Valkyrie cannot target air soldiers and is quickly slain by them, she might not be the ideal choice for a Clan Castle army. On the other hand, combining her with other well-rounded defensive troops can help them, as her wrath effect will enhance nearby soldiers upon her death.