Generally, aggressive decks want to have most of their spells costing one, two, and three mana, with only a handful costing four and five
Obelisk's Slime should require that a monster is Tributed, which can be done in multiple ways outside of Obelisk's 'two Tributes to Raigeki the opponent's board' effect
Special Summon 1 "Gladiator Beast" monster from your Deck.
In the context of mainline games, Applin is typically found early in the player's journey, often serving as an interesting find that sparks curiosity due to its unique typing and evolution requirements
Two-Star Cards These are more common than the previous categories, but they are still difficult to draw, with each pack having a 0.500% chance of carrying any Two-Star card in the fourth card slot and 2% in the fifth slot, which includes Full Art Trainer cards and two different arts of certain Pokemon
It encourages strategic thinking and creativity, allowing players to build their own unique strategies while enjoying the rich lore of both franchises