Rodeo Pyromancers 

Creature — Human Mercenary
$0.25 #6150 0.27 2.4 years
Whenever you cast your first spell each turn, add 
.
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The Vision and Scarlet Witch87%
$34.10↑#12775↓0.00↓0.2 years↓
"Whenever you cast a spell, add
and put a +1/+1 counter on this card."
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$0.06↓#19206↓0.2719.9 years↑
"When this creature enters, if you cast it from your hand, add 

."
Birgi, God of Storytelling // Harnfel, Horn of Bounty76%
$31.32↑#492↑1.06↑5.6 years↑
"Whenever you cast a spell, add
. Until end of turn, you don't lose this mana as steps and phases end."
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$0.29↑#10700↓0.00↓0.1 years↓
"At the beginning of your first main phase, add 
."
Thran Turbine74%
$3.63↑#10472↓0.00↓27.9 years↑
"At the beginning of your upkeep, you may add 
. This mana can't be spent to cast spells."
Cosmic Crucible74%
$0.32↑#15260↓0.00↓0.2 years↓
"At the beginning of your first main phase, add four mana in any combination of colors."
Electro, Assaulting Battery74%
$5.32↑#1330↑0.86↑1.0 years↓
"Whenever you cast an instant or sorcery spell, add
."
Smoky Lounge // Misty Salon74%
$0.28↑#10280↓0.231.9 years
"At the beginning of your first main phase, add 
. Spend this mana only to cast Room spells and unlock doors."