If your opponent doesn't block, the effect doesn't activate
Other Good Enchantments Call the Spirits : Nighthowler, Cage of Hands, Shielded By Faith, Fate Unraveler, Daxoss Torment, Celestial Archon, Dictate of Heliod, Necromancers Covenant New Additions : Land Tax, Soul Snare, Vampiric Rites, Seal of Cleansing, Luminarch Ascension, Brilliant Halo, Darksteel Mutation, Shadows Of The Past, Spirit Loop, Gift of Immortality
If you use both, your Super Soldier can banish 2 monsters from your opponents field, and one card from the opponents hand, before you even get to attack twice
Or in an artifact-heavy build where you have Voltaic Key lying around to double that and get a second color
[1] During the Main Phase, if you activated a Spell this turn: You can Special Summon this card from your hand, also you cannot Special Summon monsters from the Extra Deck for the rest of the turn, except Xyz monsters
For the rest of the Diamond & Pearl cards, with pictures of each card, click here