Clockwork Beast [Beatdown] Dog Detective and then followed that up

and then followed that up with mana-denial cards like Stone Rain

// Biiiiiig stretch

The single-mindedness of a zombie

put a +1/+1 counter on Furious Spinesplitter for each opponent that was dealt damage this turn

Clockwork Beast [Beatdown] Dog Detective and then followed that upSet: Beatdown Type: Artifact Creature Beast Rarity: Rare Cost: {6} Clockwork Beast enters the battlefield with seven +1 +0 counters on it. At end of combat, if Clockwork Beast attacked or blocked this combat, remove a +1 +0 counter from it. {X}, {T}: Put up to X +1 +0 counters on Clockwork Beast. This ability can't cause the total number of +1 +0 counters on Clockwork Beast to be greater than seven. Activate only during your upkeep.