Vorinclex, Monstrous Raider

Doubling effects had long been one-way multipliers that improved your own board and stopped there: Doubling Season for tokens and counters, Parallel Lives for tokens alone, Hardened Scales for the creatures you grow. This Praetor welds an asymmetrical tax onto that multiplier, and the second clause is what separates it from every doubler before it. It does not just double every counter you place, from planeswalker loyalty to +1/+1s to poison to charge counters on artifacts; it simultaneously halves the counters your opponents put down, rounded down. Against a planeswalker-heavy deck that means enemy loyalty arrives thinned out and struggles to ultimate; in a proliferate war your engine outpaces theirs on both ends of the same turn. The wide language ("counters on a permanent or player") is deliberate: it catches everything the counter subsystem touches rather than fencing itself to +1/+1 counters, so the card grows in value with every new counter type printed. The 6/6 with haste and trample makes the intent unmistakable: this was built to close games, not sit back as a value piece. The multiplier is why it warps counter-based strategies, but the body is why it does not need them to end the game. It is the counter-matters payoff and the counter-matters hatebear folded into one legendary frame.