Opalescence also can turn all enchantments into creatures, allowing you to create an army of buffed Background creatures
Iron Valiant ex has a storied competitive history, primarily due to its Tachyon Bits ability, which allows you to place damage counters on the opponents Pokmon just by moving Iron Valiant into the Active Spot
When we are looking to gain life per creature, thats an even bigger bonus
If I later on somehow receive the same card in better condition, the played one goes to my duplicated stack
Some players use the term "rummaging" to refer to this mechanic because of this card: These spells "filter" the cards in your hand, and are incredible in decks with different mechanics
Malevolent Hermit may seem unwieldy and extremely conspicuous as a Spell Pierce on a stick, but its a fantastic deterrent