Supporting Pokmon usually focus on energy setup or draw consistency, keeping the game plan simple and repeatable
Brokkos is said to experience time differently than the rest of Ikoria's creatures: its breath take hours and its naps take weeks
Its the ultimate prize for completionists but what does it take to claim one
This and similar cards like Unexpected Windfall and Pirate's Pillage are technically card neutral, so they only count as card advantage if you consider Treasure as enough of a bonus
(Prior to New Master Rule, Pendulum Monsters could be Pendulum Summoned to any Monster Zone.) Pendulum Monsters cannot be used to pay costs that send cards from the field to the Graveyard, as they do not end up in the Graveyard when a player tries to send them there
Outside of that, however, players are just going to rely on Aang, Swift Savior and Appa, Steadfast Guardian for their superior power and utility