MTG Salvation

So basically the purpose of this deck is just to get lots of fun triggers when my opponents do things. Really anything I can find. I'm looking for cards like:

• Mystic Remora
  
• Predatory Advantage
  
• Managorger Hydra
  
• Mind's Dilation
  
• Consecrated Sphinx
  
• Lurking Predators
  

The commanders will be Kraum, Ludevic's Opus and any other commander depending on what cards need to be in the deck.

I'm NOT looking for things like Kaervek or Painful Quandry that punishes people for doing things. That draws aggro and is less fun. Basically I have all of the options that says "Whenever an opponent" but I'm looking for things that are worded differently, like Predatory Advantage that I may have missed. Any suggestions?

There's several creatures that gain counters whenever an opponent casts something. Ishai, Ojutai Dragonspeaker would fit very well as a Commander partner here. The problem is that you'd then miss out on green, which offers some choice cards like Burgeoning.

Right. Like I said, I have everything that says "whenever an opponent" - basically this list

Just looking for things that don't say "whenever an opponent" but are still based on what my opponents do or don't do.

Ishai would be cool like you mentioned, but Green is pretty important and if I had to choose between Kraum and Ishai, I think I like Kraum more.

Antagonism should work for you, though I dont know if its nice enough for your purposes.

Conundrum Sphinx , maybe?

Heartwood Storyteller
Forgotten Ancient
River Kelpie
Telekinetic Bonds
Thrax
Mazirek

Sire of Stagnation
Copperhoof Vorrac
Curse of Vengeance
Insight
Titania's Chosen
Faerie Artisans
Hamletback Goliath
Noosegraf Mob
Farsight Mask
Gideon's Avenger
Kazuul, Tyrant of the Cliffs
Pallimud
Retaliator Griffin
Spiritual Focus
Sacred Ground

Life gain, lots of them, so I'll only list some examples
Palliation Accord, Auspicious Ancestor, Jeweled Torque, Auriok Champion, Essence Warden, Leonin Elder, Lifegift, Roots of Life, Shattered Angel, Soul Warden, Soul's Attendant

Static things, but still related to what opponents are doing.
Anya, Merciless Angel
Borrowing 100,000 Arrows, Theft of Dreams, Tamiyo, the Moon Sage
Carpet of Flowers
Mana Geyser
Linvala, the Preserver
Avatar of Fury, Avatar of Might, Avatar of Will
Defense of the Heart

All players
Curse of Echoes
Eye of the Storm
Heartwood Storyteller
Hive Mind
Dual Nature
Intruder Alarm

Rhystic Study counts, right? It can be bypassed, but still quite annoying.

Quote from darrenhabib »

So many things

This is the post I was hoping for. Thank you so much!