It would be a staple if the cost were lower
Yuriko is a prime example of this, able to come down for just two mana if you get through with just one creature in combat
The original Birds of Paradise says Summon Mana Birds, and the original Llanowar Elves reads Summon Elves. That was because Magic's creator Richard Garfield wanted players to feel like powerful mages summoning creatures to fight for them not too far from what the the Final Fantasy video games do
Recommended build x2 Mega Absol ex x2 Deino x2 Hydreigon x1 Cleffa x1 Giant Cape x1 Cyrus x1 Mars x1 Pokemon Center Lady x1 Red x2 Rare Candy x2 Red Card x2 Poke Ball x2 Professors Research A-Tier decks Guzzlord ex & Nihilego deck Guzzlord and Nihilego are all about disrupting your opponent while mass applying the Poison status effect to slowly chip away at the health of your opponents Pokemon
Some may still cut the mentor from their EDH decks, because they don't want to pay extra mana for their cards at all, but we think one card for one mana is a brilliant rate
By the way, you wouldn't happen to have $3,000 we can borrow to play Reanimator in Legacy, would you?