If you find all 43 for cheaper, they are a good buy
Hence, each of these monsters have an effect of 'You cannot control other "Omnitrix" monsters when this card is on your field.' These aliens also have time limits of how long it is transformed, therefore each monsters except "Omnitrix Grey Matter" include the effect of 'This card is destroyed during your Standby Phase.'
"The 10 Best Normal Pokmon Designs & Looks, Ranked"
I also have high expectations of Mantle of Tides, since in the right deck its an Inventors Goggles (a surprisingly potent card) that can equip itself to any creature
5 Rift Bolt Rift Bolt is a card that you'll unlikely be casting for its regular three-mana casting cost
In the EX era (PCG), Cessation Crystal was limited by the relative low power of being a non-ex Pokmon, but in 2008, high HP Single Prize Pokmon abuse Cessation Crystal to full effect