JP Leafeon ex 200/187 is the strongest entry-tier alt-art see at Delightful TCG
Only around seven to eight copies were accidentally produced, which already made it insanely rare
Acidic Slime Acidic Slime is a nice ramp, as a deathtouch creature for 5 mana that gets something relevant on the ETB is something worth ramping into and blinking after
719.3a: To solve [Condition] means At the beginning of your end step, if [condition] and this Case is not solved, this Case becomes solved. 719.3b: Solved is a designation a permanent can have
As such, Kroxa rose from the rubble of my graveyard, wherein it became a mighty powerful beast with power 6/6
The most played cards in the format are arguably Thoughtseize, Inquisition of Kozilek, and Lightning Bolt