When Enduring Tenacity dies, if it was a creature, return it to the battlefield under its owner's control
Attacking, Relic of Legends, Honor-Worn Shaku, Holdout Settlement, Survivors Encampment, Opposition, and TARDIS
The effect is only during that player's turn, but that leaves everyone needing to cast their spells slowly instead of being able to play as many as they want
1993 Magic: The Gathering Alpha Mox Ruby Rank - Most Expensive Magic Card: 13 Sale price: $39,600 Sale year: 2023 Sale location: Fanatics Collect Grade: PSA 10 Power, speed, and raw aggressionMox Ruby has embodied these traits since its release in 1993s Alpha set
Looks like they opened a base booster pack
Equipment decks can utilize the latter along with Puresteel Paladin or Sram