Though evolving and other elements of the Pokemon TCG can seem like an awful lot of information to take on board and remember, especially if youre new to the game or even card games in general, remember that it becomes second nature once youve had a go for yourself
His main weakness, "Siren Call", represents this and forces him to pay resources when he commits card for each icon matching the skill tested, quickly leaving him without resources and unable to commit cards anymore if he cannot pay unless he can discard it
It is not far off a mono only card
Odd-Eyes Mirage Dragon & Odd-Eyes Persona Dragon Searchable Pendulum scales via Sky Iris, also they have decent monster effects if you actually get to Pendulum Summon them
These are virtually unplayable in every scenario and you should never put these cards in your main deck
It is removed from the game and placed into the exile zone, where it loses all memory of its former state (any damage incurred that turn, enchantments, counters, equipment, whether it was the target of any spell or ability, and any other effect)