Both of these Locations don't have a unique ability, but they ease the player into using them by being cheap, ink cost-wise, while also gaining you one lore at the start of your turn, so long as the locations stay on the field
30% of Play boosters (but, interestingly, not Collector boosters) have Art cards, and 5% of Play boosters have art cards with a gold-stamped artist signature or Planeswalker symbol
With Sisay being a two-mana-value commander, she seems ideal for an aggressive early-game strategy
If you do, Myr Battlesphere gets +X/+0 until end of turn and deals X damage to the player or planeswalker it's attacking
Saskia the Unyielding Saskia the Unyielding is one of your best options if you want to have access to the most werewolf cards
You build up an impressive board, play Yorion, exile all your nonland permanents, crack your Nevinyrral's Disk or play a wrath of some sort and you should be set up to be able to swing out on your next turn