Ronom Unicorn

The body is the price of admission, not the payoff. Strip away the 2/2, and what remains is a Disenchant held in reserve: the answer is paid for up front and sits on the board until you decide an enchantment is worth destroying. That structure is the whole pitch. A reactive answer in your maindeck is a dead card against opponents who never deploy the threat it answers; here, if nobody plays an enchantment worth killing, you still have a creature that attacks and blocks. The sacrifice clause waits on the battlefield, an answer you can hold indefinitely, free to fire at instant speed and immune to the sorcery-speed limitation that constrains so many cheap removal spells. White has cycled through this exact compromise for years: a small body that doubles as a one-shot answer to a specific permanent type, the cost folded into a creature you would not mind drawing regardless. The trade-off is not mana (the body and the sacrifice together cost no more than a clean Disenchant, since the activation is free) but tempo and exposure. You commit the answer to the battlefield a turn early, where a removal spell or a blocked attack can pick it off before you ever cash it in. What you buy in return is flexibility against the unknown: a card that is never fully dead, and occasionally exactly the tool the moment demanded.