If tails, Zapdos does 30 damage to itself
First, at the time, we didn't let black kill black creatures
While this could be attributed to not wanting there to be overlap since the game was still in it's early stages and the "Greymon" line already had Red and Black versions and Tai for an associated Tamer, said reasoning goes out the window with the set "Dimension Shift", which gives predominant focus to the ReDigitize cast and has Nicolai and Akiho's partners ("Sashenka"/Gaomon and "Digitorin"/Biyomon) retain their canonical evolution lines, keeps Taiga supporting "Tyrannomon" cards rather than giving Digimaru a Green or even Red-Green "Greymon" line
Again who could possibly turn that down
If you dont sleeve all of your aspect cards at all times (we dont!), you can get away with far fewer sleeves, and the bare minimum you can go with is 2 boxes of 100 sleeves, which is enough to sleeve 2-3 (possibly 4, depending on the size of the encounter deck) hero decks and an encounter deck with some change
Styles Combine in a New Strategy