His ability looks pretty situational, and it can be, but its important to remember that Leyline Axe is currently in Standard
The good news is that the basic lands look amazing
No other creatures are as efficient at doing this than Ledger Shredder
While Bant Counters doesn't seem like the most inspiring of themes, Tidus, Yuna's Guardian provides so much value for three mana that it's hard to ignore, letting you draw cards, move counters around, and even proliferate each turn
I might not have all the mechanics down, and Im still misreading what some spells do, but Magic: The Gathering Arena has this way of teaching you without discouraging you
Cards like Opposition Agent, Deep Gnome Terramancer, and Rhystic Study work just fine while being detained, giving you time to access more expensive spells that Lavinias influence cannot reach