Liliana, Death Wielder

The whole walker is built around a single counter type doing double duty. The plus ability is slow attrition: a -1/-1 counter shrinks a creature, and on a one-toughness body it simply removes it. But that same counter is also a key. The minus three only fires on a creature that already carries a -1/-1 counter, which means the two abilities are designed to chain: tag a creature one turn, blow it up the next, or skip the wait entirely against anything already marked by an outside source. That dependency is what pays for the rate; this is a seven-mana planeswalker whose removal is gated behind setup it usually has to provide for itself. Starting at five loyalty and climbing two at a time, it leans on the plus to both build toward the ultimate and seed the targets the minus needs. Note the split in whose graveyard matters: the counters and the minus three are attrition aimed across the table, while the ultimate reaches only into your own yard, returning every creature card you own for a game-ending swing. That asymmetry shapes how the card wants to be built, since the reanimation payoff rewards a deck that fills its own graveyard by other means rather than counting on the creatures Liliana kills. She spends most of the game as a grindy control piece, rewarding patience with a top-end that repopulates your board all at once.