Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)Return target permanent to its owner's hand.
Buyback (You may pay an additional as you cast this spell. If you do, put this card into your hand as it resolves.)Create an X/X green Wurm creature token.
: Add .When Flagstones of Trokair is put into a graveyard from the battlefield, you may search your library for a Plains card, put it onto the battlefield tapped, then shuffle.
Suspend 6—Each player chooses a number of lands they control equal to the number of lands controlled by the player who controls the fewest, then sacrifices the rest. Players sacrifice creatures and discard cards the same way.
Target player sacrifices half the permanents they control of their choice, rounded down.Suspend 2— (Rather than cast this card from your hand, you may pay and exile it with two time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)At the beginning of each...
Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)Untap target permanent and gain control of it until end of turn. It gains haste until end of turn.
Flying: Search your library for a Dragon permanent card and put it into your graveyard. If you do, Scion of the Ur-Dragon becomes a copy of that card until end of turn. Then shuffle.
Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)Counter target activated or triggered ability. If a permanent's ability is countered this way, activated abilities of that permanent can't be activated this turn. (Mana abilities can't be targeted.)
Split second (As long as this spell is on the stack, players can't cast spells or activate abilities that aren't mana abilities.)Target creature gets +5/+5 and gains shroud until end of turn. (It can't be the target of spells or abilities.)