holographic unown pokemon card 2001 Neo Discovery 1st Edition Holo A #14 CGC 10 GEM MINT on Fanatics Collect you may search you deck for another Unown and switch it with Unown Pokemon Card - Neo Revelation

SR Super Rare Morpheus, the Dream Mirror White Knight X LIGHT Level 8 [ WarriorEffect ] ATK 1000 DEF 2800 If this card is Special Summoned by the effect of a "Dream Mirror" monster: You can activate this effect

Note that Tributing or sending is NOT the same as destroying, but destroying a card will send it somewhere (normally to the GY)

That said, this does mean you have an obvious (and relatively cheap) first step to take when going about upgrading the deck

Behemoth the King of Battles Level 10 EARTH Beast / Effect You can Tribute Summon this card by Tributing 1 monster

The most common pairing is Numa, Joraga Chieftain, but I prefer Thrasios, Triton Hero (one of Magic's best merfolks) or Tana, the Bloodsower for a better color identity