The math becomes: Mega Charizard X Cost = $4.50 per pack 80 packs per SIR 5 SIRs = $1,800 So the pack-implied replacement cost of one raw Mega Charizard X ex is about $1,800
For example, to cast a sorcery spell from a graveyard, you can do so by paying its mana cost only during your main phase while the stack is empty
Requiring 3x Colorless Energy, this 80 DMG move also gives you one each of a Fire, Water, and Lightning Energy, and lets you attach them to your Benched cards in any way you like
Heliod, Sun-Crowned + Walking Ballista ($12.27) give Ballista lifelink with Heliod, remove a +1/+1 counter to ping for 1, the lifelink gains you 1 life, Heliod puts the counter right back
It's always a hit, whether the people getting the card are Pokmon fans or not
For a detailed breakdown on the reasons behind this, you can check out YouTuber Spice8Racks explanation of the origin of Rakshasas and how they were changed for Dungeons & Dragons and then Magic