Even if your opponent removes it, it probably already drew you a replacement
The value comes from not knowing what's inside
Numai Outcast can grow to a 3/3 if blocking/blocked, but the regeneration cost on it is insanely high (five life!) Takenos Cavalry can at least function outside of combatbut only to deal one damage to a Spirit
Make sure you don't get hit in the cheaphole and may the mythics, the guilds, the prices, and the cards be ever in your favor, my friends!
This Move does 30 damage for one Energy
Its as if the designers tried to say: Hey, if youre bad at deck-building, heres at least some extra health for you. A good deck utilizes mana very accurately, and you almost never should end up with excess mana, unless something totally unexpected happens