X is its converted mana cost. An enchantment card with the effect, you can see that the effect is discriminatory
Any of those creatures that were removed from combat but are still on the battlefield will still get +4/+4
Thats not to say this deck isnt powerful, but more that it was built with the idea of playing cards I dont usually get to
I Wanna Be Where the Merfolk Are As typal builds go, EDHREC shows that Merfolk falls far behind the most popular type, Dragons
Yeah, now its balanced! Of course, that is not the case, and this rarely reprinted instant (originally printed at common) is worth over $10 on the secondary market thanks to the massive influx of mana it provides for an extremely low resources cost
Sadly, theres no telling when, or if, these obscenely high prices will ever fall