The back of the card is ruined
The basics match (C is Common, U is Uncommon, R is Rare, RR is Double Rare), but the top tiers flip: JP SR equals English Ultra Rare, JP UR equals English Hyper Rare, JP AR equals English Illustration Rare, and JP SAR equals English Special Illustration Rare
Having skulk with a low attack makes it basically unblockable while having deathtouch with a high toughness can make for an amazing blocker
The SOS Mystical Archive bonus sheet won't help much for your Standard collection, but it provides nice pickups in addition to a suite of great cards for spellslinger decks
While the Standard Open itself didn't go so well for me, I did manage to snag a 1st place win in the Standard Classic event on Sunday with one of my favorite style of decks: Tezzeret with lots of artifacts
MH3 has a wealth of amazing cards, including Psychic Frog, Vexing Bauble, and numerous Boros Energy staples