Unfortunately, Infect has fallen somewhat to the wayside in Modern lately, but it remains a competitive strategy for players who aren't concerned with running the best deck out there
While I'm usually pretty jealous of the Japanese Pokmon Centers because they tend to have way more options for merchandise, we've been treated to a wonderful amount of Halloween gear in the U.S
Manifest one (by putting it onto the battlefield face down) and put the other into your graveyard
As a result, Aerodactyl EX is our go-to for a Lucario deck
Aitsu is particularly notable, not just because of its horrible stats for a Normal Monster that you need a tribute for, but also the way that they encourage you to play it and also their appearances in other places in the card game
The tricky thing about this card is timing: having to pay two mana before casting an impactful spell could throw off your mana curve if you're not careful, making this one you'd be better off holding until the late game than casting as soon as you have enough to warp