Ivory Giant
A one-sided Falter is the entire pitch here: every nonwhite creature taps when this lands, opening the door for an unblocked alpha strike. The complication is structural, since the body that delivers the tap clause is also the body deciding when it arrives. Hard-cast at full freight, the timing is yours but the tempo is dreadful. Suspended for a single white mana, it leaves the field tapped down on the upkeep five turns out and arrives with haste, which is the line the card is actually built around: a white aggressive deck banks the alpha-strike enabler early for a token cost, develops a board behind it, and then collapses the opponent's blockers exactly when the swing has to connect. The 3/4 it brings along is incidental; the value is the tap clause stapled to a free arrival. What balances the design is the commitment: you fix the turn it goes off the moment you suspend it, with no way to hold the trigger back if the race shifts. White rarely gets to dictate combat math this cleanly, and rolling the cost down to a single pip is what makes the gambit worth taking over simply playing a creature on curve.
Rules text
(Rather than cast this card from your hand, you may pay and exile it with five 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. It has haste.)
