A pointed stick is your good friend
Amber Amethyst Emerald Ruby Sapphire Steel This cost is in the hexagon in the top right-hand corner of the card
To get a mana advantage out of the card you have to pay two life however the strength of the card is not so much that you can be one mana better off than your opponent over an exchange but that you can make the exchange when you have no spare mana
Most of the time on turn 3 youre probably just going to want to play it as a 3-mana 3/3 that enters tapped, but sometimes youre in a spot where you really need to be able to block, and you can play it Disguised when thats the case, and draining 3 life from your opponent is a pretty real effect
Pingers, tiny burn spells, incidental 1 damage triggers
Even in Limited, it is incredibly dangerous to do given common effects that return cards from graveyards to their owner's hand