arceus vstar 123 172 brilliant stars ultra rare pokemon card #123/172 – shuffle your deck Arceus VSTAR - 123/172 -

Deals 2 damage to each opponent whenever another creature enters the battlefield under your control

NIM DEATHMANTLE Emerging from the high-powered Scars of Mirrodin block, Nim Deathmantle plays with one of the most underutilized kinds of reanimation: the defensive Reanimator card

Apart from mutate cards to trigger that ability, I guess you could use Stuffy Doll and Brash Taunter, or fill your deck with cards that grant abilities to your commander like backgrounds and the legendary familiars (Kediss, Falthis, et al)

While Spelunking does do all those things, after playing the deck a bunch, I realized it's actually way, way better than I thought

In the video Inside R&D Magic 2015: Green, Magic developer Sam Stoddard discussed returning mechanics and reprints: Whenever we do a returning a mechanic for a set, we, of course, do want to have a big iconic card that reminds you of why the mechanic is awesome