Corpse Hunting Rend Cataclysm, Roveena & Zuin (RRR)

[AUTO]:When this unit is placed on (RC) from hand other than during the battle phase, perform one of the following.
[COST][Counter-Blast 1], look at the top card of your deck, and put it on the bottom of the deck, or discard it. Choose a grade 2 or less card from your drop, and call it to (RC).
[COST][Energy-Blast 2], look at the top card of your deck, put it on the bottom of the deck or into soul, choose one of your opponent's rear-guards, and put it into soul.
[AUTO](RC):When this unit attacks, if your opponent's vanguard is grade 3 or greater, this unit gets [Power]+5000 until end of that battle. If you have a vanguard with only one clan, it gets [Power]+5000 until end of that battle if your opponent's vanguard is grade 2 or greater instead of grade 3 or greater.