In my opinion, that’s decent card design. It gives you an advantage but also gives you a disadvantage, the latter of which could be nullified. There are many factors to consider when playing the card, it’s strategically multifaceted.
Then why can’t we play Mali offensively? A health nerf and an attack buff could be in order. I do understand my suggestion is a nerf, but I don’t think it will be underpowered. It will merely make Mali step down from her position as a staple in Ramp/Aggro decks to a strong tech option.
All decks benefit from more mana. A Ramp deck doesn’t use mana most efficiently, it just earns more if it. Furthermore, original Mali gives more of a mana advantage over the opponent than my suggestion. You’re claiming that a +0 advantage is stronger than a +2 advantage.
But killing Mali either way still deals straight 4 damage, regardless of her effect. It’s not like my suggestion nerfed Mali to 0 attack or something.
