Once you choose to cast the top card of your library, Planetarium of Wan Shi Tong's ability won't trigger again that turn
1 Jaheira, Friend Of The Forest And Friend Of The Bears Jaheira, Friend of the Forest is coincidentally another token-matters Background legend, though significantly stronger than Halsin
C Common Vehicroid Connection Zone X SPELL Fusion Summon 1 "Vehicroid" Fusion Monster from your Extra Deck, using monsters from your hand or field as Fusion Materials, and if you do, it cannot be destroyed by card effects, and its effects cannot be negated
Card earned: "Dark Armed Dragon" x3 Kalin Kessler First Heart: The player and Kalin Tag Duel against KENYoU and Terence Second Heart: The player and Kalin Tag Duel against Kaia and Yumi Third Heart: The player and Kalin Tag Duel against Poncho Yusei Fudo and Crow Hogan Fourth Heart: The player and Kalin Tag Duel against Syun and Jaime Card Earned: "Infernity Doom Dragon" x3 Vizor First heart: The player duels against Vizor
That makes it a great fit for land recursion shells, where pitching extra lands is basically free reach once cards like Crucible of Worlds or Life from the Loam are online