The fact that it costs one mana is a big deal for Trinket Mage toolboxes, and its quite the blowout in very specific situations
Superheavy Samurai Brave Masurawo X EARTH Level 12 [ MachineSynchroEffect ] ATK 2100 DEF 4000 1 Tuner + 1+ non-Tuner monsters This card can attack while in face-up Defense Position
If you Cascade and cast another spell with Cascade, you resolve the second Cascade before the original spell resolves
Personally, I think its a fun and interesting way to play the game on an unusual axis, though I can see why players wouldnt like to see their beloved cards disappear before their eyes
Mew ex, and its attack Genome Hacking, is exactly the type of card that can obliterate the reliable and predictable pattern of top decks, and I predict it will quickly rise to the top as one of the most desired cards in the game
Many of the examples Ive given are taken straight from my article series How They Brew It