While Id like to think Ive never been the worst offender in this regard, Ive definitely had my slip-ups in the past, too
(It can't be the target of spells or abilities.) Equipped creature can't be blocked
That said, it is very powerful, especially in a meta where your opponents regularly play cards like Rhystic Study or other ways to keep topped up on cards
Another Pokemon, Radiant Hisuian Sneasler, can add an extra two counters from the Bench, and the Stadium Perilous Jungle adds two more to non-Darkness Pokemon, totaling to ten damage counters every turn
Aeve, Progenitor Ooze All of History, All at Once Amphibian Downpour Astral Steel Brain Freeze Chatterstorm Crackling Spellslinger Crow Storm Dragonstorm Elemental Eruption Empty the Warrens Fiery Encore Flusterstorm Galvanic Relay Grapeshot Ground Rift Haze of Rage Hindering Touch Hunting Pack Ignite Memories Krosan Adaptation (playtest) Mind's Desire Mordor on the March Murmuration Prismari, the Inspiration Radstorm Ral, Crackling Wit Reaping the Graves Scattershot Spreading Insurrection Sprouting Vines Storm of Memories Storm, Force of Nature Stormscale Scion Tempest Technique Temporal Fissure Tendrils of Agony Volcanic Awakening Weather the Storm Wing Shards