While committing more mana into your mana rock just to keep using it isnt great, you can pretty easily get around it
Card Set(s) -THE AZURE SEAS SEVEN- [OP14-EB04] CARD VIEW EB04-023 | R | CHARACTER Chaka & Pell Attribute Slash Block icon 4 Effect [Double Attack] (This card deals 2 damage.) [On Play] You may give your active Leader 5000 power during this turn: Draw 2 cards
For some who feel obligated to match card sleeve to deck type, you avoid that completely
During either player's turn: You can target 1 "Noble Arms" Equip Spell Card and 1 appropriate monster on the field
Learn more: Volo's Guide to Monsters Waterdeep: Dragon Heist Dragons Ebondeath, Dracolich Long ago, the black dragon Chardansearavitriolbetter known as Ebondeathruled over the Mere of Dead Men, a swampy region situated between Neverwinter and Waterdeep on Faern's Sword Coast
Opening multiple packs or a booster box increases the chances of pulling special cards