Both Equipment immediately protect their user that turn
Aside from the obvious similarities between the two Pokemon, this scene's burst of colors exploding around Latias makes it difficult to focus in on its eye color unless you're specifically looking for it, making this Pokemon even more difficult to discern
Many Assassins have various keyword abilities such as menace, which makes them not only harder to block, but more likely to take out your opponents, especially if their life total hits 10 for Ezio Auditore da Firenze to make them lose the game with its triggered ability
But more in a much more real sense
With Recycle Energy, the effect has changed because the older version of the card is, at some point, in your discard pile
The combination of its +1 and -2 ability means that its hard to fight this card efficiently, and it gets better when you have graveyard synergies or discard incentives in play like Bandit's Talent