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'At the beginning of your upkeep, return another creature you control to its owner's hand. If you do, put a +1/+1 counter on this creature. Otherwise, you may return this...
'You may exile a blue card from your hand rather than pay this spell's mana cost.
Change the target of target spell with a single target.
'{T}: Target red or green creature gets -2/-0 until end of turn.
'{T}, Pay 1 life, Sacrifice this land: Search your library for a Forest or Island card, put it onto the battlefield, then shuffle.
'Change the target of target spell with a single target. You lose life equal to that spell's mana value.
'Whenever this creature attacks, it connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)
'Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) Whenever a creature you control with a +1/+1 counter on it dies, draw a...
'You may pay {1} and return a basic land you control to its owner's hand rather than pay this spell's mana cost. This artifact enters tapped. {T}: Add {U} or...
'{2}{W}{U}: Exile target creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.
'Flying Morph {2}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) When this creature is...
'Counter target instant or sorcery spell unless its controller pays {3}.
Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.) Return one or two...