When you deal combat damage to a foe, you dig that many, reveal one land and/or creature and toss them onto the battlefield
Stompy Gruul decks always benefit from attacking with big creatures as soon as they enter, especially if they have powerful attack triggers, like with Etali, Primal Storm
However, for those who do choose to use these in a deck, it can be quite the flex and a way to mess with an opponents mind
At first glance, its stats dont seem anything special, but if an opponent wants to challenge any of your characters while Tiana is exerted, they either get -3 strength, or pay three ink to remove that penalty
Sparring Regimen is three-cost, one-power and really takes until the third turn as three power and a card drawn to be good enough