Sure, East Tree lets you put a permanent down for free, but that's a win-more card
You can amass an army of large tokens fast also just by playing the common Artifact Land cycle of Ancient Den, Seat of the Synod, and Vault of Whispers
What youll need: two Magic cards (two of the same card, if you want both sides of the flower to mostly match) ruler and scissors or cutting mat & blade mechanical pencil needle and thread super glue (see, theres superglue involved how could this not be an awesome, sexy craft
Eight mana might seem like a lot to pump all your creatures, but a card that gives you both a burst of mana and ways to utilize that mana is, frankly, amazing
All five of those cards have seen heavy play across formats, with Troll of Khazad-dm actually getting banned in Legacy last week