Lancetooth provides a decent improvement for blue over a Steelsplitter with a few downsides, but works well for going from an early Steelsplitter right into a Lancetooth on turn 6/7. It’s build time of 2 makes it even less efficient as a defender than a wall in terms of promptness, but it does have 1 more absorb to make up for it. Early game against a wall it’s usually not hard to have the spare attack to help pay the cost thankfully. Let’s look at some other mono blue attackers for comparison.
The basic blue attacker/defender. It’s not very cost efficient, but its available early game and provides some flexible pressure and defense. Thankfully for 2 more gold and an attack you can double its attack pressure and increase its absorb by 1 by getting the Lancetooth.
Doomed Mech is close with the same attack as Lancetooth, but with 1 more absorb, a blue instead of attack cost, a normal 1 turn build time, and a limited Lifespan.
Drake manages to provide the same amount of attack as Lancetooth, but also offers the ability to defend at the same time or double its attack for the cost of a Blastforge. It costs quite a bit more and also costs a second blue instead of an attack, but can easily turn that spare blastforge into something.
For 2 less gold than a Drake you get a bit of a variation in only getting 1 attack per turn, but some Pixies for threat. It’s click ability is also similar to Drake except for 3 threat attack delayed by at least 1 turn.
It costs significantly more than a Lancetooth, but bumps up the attack by 1, and the defense by 2 for a 1 turn build time.
The same attack as a Steelsplitter, but you trade 1 more absorb and 1 less gold cost for the disadvantage of Frontline. This can be an even better way to transition early into an early Lancetooth.
Much like Drake, this provides 2 attack and the same health, but not a blocker. Counting the Steelsplitter, this also works out to around the same cost as a Drake. The biggest difference of course is that this is primarily used as an econ destroyer rather than a normal attacker. It does thankfully have the flexibility to do both.
Odins cost and ability usually makes it more of a game ender than a straight up attacker.