Assailant (3) you just sent as Material since all 3 of them are Level 4 and Warrior-type.
Like most Pokmon cards, the value of Rolycoly depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Ascended Heroes)
Considering Zombies want the Graveyard as a springboard for their own plays, I would think that banishing 3 to summon this isn't really good, especially for a monster that only has 2200 ATK that needs SSing from the Graveyard
WUBRG-Burrow As a Commander player, I find myself almost always ignoring the main set drops and instead focusing solely on the legendary creatures
This is a very in depth guide, so skip any section you might already know
This is card is likely the most iconic of the entire Pokemon TCG and was a driving force in Charizard becoming one of the most popular Pokemon in the entire franchise