It's restricted, but you're usually hard pressed to find games where it's entirely dead unless you sit down at a table with all mono-color decks or other colorless enjoyers
Do you play reach matters and spiders in your EDH decks
Krenko is a 2RR creature with a 3/3 statline, and an ability as simple as it is dangerous: tapping Krenko creates X 1/1 red Goblin creature tokens, where X is the number of Goblins that the player controls
The other neat part of Pia Nalaar is that she gives all your Thopters haste, letting you attack the turn you make them
Arboreal Alliance Cayth, Famed Mechanist Coursers' Accord Determined Iteration Druid's Deliverance Eyes in the Skies Full Flowering Ghired's Belligerence Ghired, Conclave Exile Growing Ranks Horncaller's Chant Life Finds a Way Muster the Departed Nesting Dovehawk Promise of Aclazotz Promise of Aclazotz Rootborn Defenses Scion of Vitu-Ghazi Selesnya Eulogist Song of the Worldsoul Sundering Growth Trostani's Judgment Trostani, Selesnya's Voice Vitu-Ghazi Guildmage Wake the Reflections Wayfaring Temple Xavier Sal, Infested Captain