Immediately afterward, it ceases to exist and cant be interacted with further (you can't resurrect an artifact token, for example)
However, The Seedcore does have one big issue that might make it hard to play more than one copy in an Infect deck: it doesnt make colored mana for spells
He is one of its main characters, the Dominant of Bahamut, the son of the Emperor Sylvestre Lesage and lover of Sir Terence
Ancient Cornucopia One of my favorite cards to run in multicolor decks due to its ability to stabilize, Ancient Cornucopia gives you steady lifegain whenever you cast a multi-color spell while also fixing your mana
Also, low mana value changelings do exist
Brainstorm is on the Through the Ages bonus sheet and combos really nicely with this, too