The bounce cards, Madam Mim Snake and Madam Mim Fox let you replay other Characters to reactivate their effects
People will often keep from trading or killing it in order to avoid the death-removal-trigger it threatens
Strengths: Wizards Lightning is a fantastic Magic card, and U/R Wizards is capable of some absurdly fast kills
The Leonin Scimitar is in just 609 decks, but it seems very strong with one mana card drawing Sram, Senior Edificer (993 decks), or the mad card flow of the attack trigger of Wyleth, Soul of Steel (1969 decks) as two commonly played examples
This is especially true if you're looking for cards that are ONLY useful as defensive stop-gaps
Three months with Treasure Cruise and DTT have made it crystal clear that delving three to seven cards can happen way sooner than you realize, even in Standard