bleach thousand year blood war booster box Union Arena Thousand-Year Pack [UA08BT] 16Pack Year Blood War Union Arena: Bleach Vol. 2

Since each belongs to 2 of the original Onomat archetypes (or all 4 in the case of Utopic Onomat), their effects synergize really well with each other, meaning if you have 2+ unique Onomat Monsters, all of them can be Summoned to the field on that turn.

On paper, that is a good strategy because his field spell, Ancient City - Rainbow Ruins, gains increasingly powerful effects for each one, and if the backrow is full can summon a monster from there each turn, and if it happens to be Ruby Carbuncle it will result in a massive advantage

Even Exiled Creatures do not get rid of Rancor as the Enchantment itself doesnt get Exiled

When this enchantment leaves the battlefield, each player shuffles their hand and graveyard into their library

Serperior Scatterbug Talonflame Sky Hunt may not be a serious enough of an ability to warrant running this Stage 2 Pokemon in your deck, but its still a neat mechanic that could be fun in control decks