Cards that add counters?

[Boomer17]

Is there a card that has the triggered or activated ability when a counter is added to a creature add another to each creature you control. Sounds crazy too but trying to find something like that

[Keyeto]

You mean something like {Renegade Krasis}?

[adventus]

{master biomancer}?

[Hunteroffire9]

 {Renegade Krasis}is what your looking for:)

[adventus]

{corpsejack menace}

Edit:  sorry read the OP wrong 😣

[Boomer17]

Yep that's it

[MisterJH]

{cathars crusade} adds one for every ETB, not quite the same

[Gorzo]

 {Vorel of the Hull Clade}'s effect is a little different but fits in with that theme of vomiting counters onto things with counters on them.

[Birdbrain]

{Vorel of the Hull Clade}'s effect is a little different but fits in with that theme of vomiting counters onto things with counters on them.

The proliferate mechanic does that as well

[Iandtormentor]

{Vorel of the Hull Clade}'s effect is a little different but fits in with that theme of vomiting counters onto things with counters on them.

The proliferate mechanic does that as well

vorel doubles counters

[Birdbrain]

{Vorel of the Hull Clade}'s effect is a little different but fits in with that theme of vomiting counters onto things with counters on them.

The proliferate mechanic does that as well

vorel doubles counters

and it can be used on non-+1\+1 counters as well.

[Xaol]

{Vorel of the Hull Clade}'s effect is a little different but fits in with that theme of vomiting counters onto things with counters on them.

"Vomiting counters" eh? Interesting term, I think I'll use it from now on!

[Keyeto]

{Vorel of the Hull Clade}'s effect is a little different but fits in with that theme of vomiting counters onto things with counters on them.

"Vomiting counters" eh? Interesting term, I think I'll use it from now on!

Lol, Gorzo certainly has a way with words that really brings things to life.

[Boomer17]

Ya trying to build a BUG  add counter deck and have him and vorloz in it and trying to figure out how to maximize with courpse jack as well

[Langku]

{vorel of the hull clade} with {forgotten ancient} and {doubling season} could be fun for... The vomit effect 😂.