Matzalantli, the Great Door / The Core This feels better than the often underrated Growing Rites of Itlimoc, and its colorless
All five of these lands will see play in Standard
Anaba Ancestor Anaba Spirit Crafter Boros Battleshaper Boros Reckoner Boros Strike-Captain Etherium-Horn Sorcerer Felhide Spiritbinder Firesong and Sunspeaker Glint-Horn Buccaneer Gornog, the Red Reaper Karplusan Minotaur Kazuul Warlord Lord of Shatterskull Pass Maelstrom Artisan Minotaur, ROXXON CEO Neheb, Dreadhorde Champion Neheb, the Worthy Oracle of Bones Rageblood Shaman Sandstorm Crasher Sethron, Hurloon General Tahngarth, First Mate Tahngarth, Talruum Hero
What makes the card so memorable is that it looks like Rayquaza is not simply appearing in the artwork but tearing through the entire card space
Lessons allow you to earthbend 1 and add an additional counter, and all of this synergizes with additional +1/+1 counter cards