Most of the time, the only rules that apply are how much energy is needed to perform an attack and how many cards of a certain type can be used on one turn

Surges Deal [Mega Brave (M1L) 085/063] Lillies Determination [Mega Brave (M1L) 086/063] Mega Gardevoir ex [Mega Symphonia (M1S) 078/063] Mega Latias ex [Mega Symphonia (M1S) 079/063] Mega Kangaskhan ex [Mega Symphonia (M1S) 080/063] Rare Candy [Mega Symphonia (M1S) 082/063] Acerolas Mischief [Mega Symphonia (M1S) 084/063] Wallys Compassion [Mega Symphonia (M1S) 085/063] Unconfirmed: Mega Lucario ex AR Art Rare (Confirmed) Confirmed: Bulbasaur [Mega Brave (M1L) 064/063] Ivysaur [Mega Brave (M1L) 065/063] Exeggutor [Mega Brave (M1L) 066/063] Vulpix [Mega Brave (M1L) 067/063] Riolu [Mega Brave (M1L) 068/063] Marshadow [Mega Brave (M1L) 069/063] Garganacl [Mega Brave (M1L) 070/063] Spiritomb [Mega Brave (M1L) 071/063] Steelix [Mega Brave (M1L) 073/063] Spearow [Mega Brave (M1L) 074/063] Gumshoos [Mega Brave (M1L) 075/063] Shuckle [Mega Symphonia (M1S) 064/063] Litleo [Mega Symphonia (M1S) 066/063] Snover [Mega Symphonia (M1S) 067/063] Helioptile [Mega Symphonia (M1S) 070/063] Shedinja [Mega Symphonia (M1S) 072/063] Stufful [Mega Symphonia (M1S) 075/063] Inteleon [Mega Symphonia (M1S) 069/063] Alakazam [Mega Symphonia (M1S) 071/063] Delibird [Mega Symphonia (M1S) 074/063] RR Double Rare (Confirmed) Confirmed: Mega Venusaur ex [Mega Brave (M1L) 003/063] Mega Camerupt ex [Mega Brave (M1L) 013/063] Mega Lucario ex [Mega Brave (M1L) 029/063] Mega Absol ex [Mega Brave (M1L) 038/063] Mega Mawile ex [Mega Brave (M1L) 046/063] Mega Abomasnow ex [Mega Symphonia (M1S) 018/063] Mega Manectric ex [Mega Symphonia (M1S) 032/063] Mega Gardevoir ex [Mega Symphonia (M1S) 042/063] Mega Latias ex [Mega Symphonia (M1S) 049/063] Mega Kangaskhan ex [Mega Symphonia (M1S) 051/063] Pokmon Mega Brave [M1L] / Mega Symphonia [M1S] Full Card Lists (Confirmed) Pokmon TCG: Mega Brave [M1L] Card List Weve compiled complete tables for Mega Brave [M1L] and Mega Symphonia [M1S], including card numbers, rarities, and names

Gods comprise some of the most important creature cards across the whole of MTG
You can only use this effect of "Time Thief Double Barrel" once per turn
While it generates less cards during the combo, it also requires less cards
Jidoor, Aristocratic Capital has an ability that mills half a players library tacked to an adventure, and if you have some ways to return lands from the battlefield to your hand, you can make a pretty good combo (Fear of Isolation, Kor Skyfisher)