His ability looks pretty situational, and it can be, but its important to remember that Leyline Axe is currently in Standard
Since you can use it to pump your opponents creatures, you can play politics with your opponents, promising to pump their creatures in exchange for not attacking you, or completely messing up your opponents blocking plan by giving your opponents creatures a buff before damage
Do we really need a good reason why Starting Town became an instant-include
Artifact and Creature Sacrifice is one of the weakest archetypes since you need a lot of high-rarity cards to make it worth playing
While we wouldnt have the full block until 2013, Return to Ravnica brought powerful new tools (Abrupt Decay, Sphinxs Revelation, Cyclonic Rift, Rest in Peace, Dreadbore) and one unassuming but eventually problematic megaguildmage/one-mana planeswalker in Deathrite Shaman
I was part of the pool of people who hated Teferi, Time Raveler and wanted him to be banned