Offering to Vyedal

{b/g}: Sacrifice a creature, the next creature spell
you cast costs {x} less to cast, where {x} is that creatures power or toughness. if {x} is 7 or more
then you may play a card from your hand without paying the mana cost. If you cast a troll card this
way then make a copy of it, this ignores the legend rule.
"With this sacrifice we'll let Vyedal know that he has strength beyond just his own and then he might grace
us with his abilities." — Vyedal Cult Follower