What are some cards that put +1/+1 counters on creatures?

[Silent1236]

Well, I mean, probably {Doubling Season} when you get things rolling

This thread is SO old!

Yeah, but the Other board doesn't get much love . Gotta keep it alive somehow haha

[Pi]

{llanowar reborn} or {vigor}

[Galabranth]

All the new Ordeals!

{Ordeal of Thassa}
{Ordeal of Nylea}

Pardon me for the slight necro. Just was surprised they weren't here yet.

[IntoFire]

Evertone has forgotten {Burst of Strength}. •__•

[Sparkle Ninja]

{Mikeaus The Unhallowed} {Mikeaus the Lunarch} {Death's Presence} 

[VQMracing]

Not BG but {ephara's enlightenment}

[MuggyWuggy]

Creatures with "Graft" mechanic

[Erik_the_gray]

 {Kazuul Warlord}

Ally decks FTW!

[Splicer]

{Hunt the weak}
Also, anything with evolve(like {Adaptive Snapjaw})

[Rass]

Once you have the counters. Look up proliferate.  {Contagion Clasp} for example.