You can even untap lands that tap for more mana than you spent to cast the spell, so Snap can sometimes do a handy impression of a mana ritual spell if you have powerful lands such as Nykthos, Shrine to Nyx available while also bouncing a pesky creature back to its owner's hand
Hearthborn Battler with that one drop feels like it does that last bit of direct damage in an aggro deck, rather like Ramunap Ruins
Challenger Troll Heres what Id like to call a trample payoff. Challenger Troll makes your high-powered creatures blockable by only one creature per combat, which means that token decks cant just pump out a bunch of 1/1 Humans to lethally block your creatures anymore
Kasla's last ability will trigger whether you tapped any creatures to pay for the spell or not, as long as it has convoke
Starting the game on turn 2 gives you more options, more ways to spend your mana, and a faster start to win
This cards stats and keywords make it offensive and defensive as well