This combo can be reused with Rescue to effectively return your Candlemas Monks to your hand
Alternatively, Agatha's Soul Cauldron could exile Voldaren Thrillseeker, granting its sacrifice ability to your creatures with a +1/+1 counter
Obviously you need to be in a combat focused deck for this one, but if you are I see little reason why you wouldn't cram this in if your manabase can warrant a few taplands
This is beneficial in a couple of ways
Seismitoad doesn't have an Ability but it does have two moves, the first move is called Round which does 30 damage the number of Pokemon you have in play that have the Round attack, and Seismitoad can do this move for two colorless energy cards
Uncapping the mana available to players at the start of the game makes it more reasonable to allow potent attacks on mana, like Wasteland, Daze and Armageddon, adding a whole new strategic element to the game