The Emperor can put a +1/+1 counter on a creature and give it First Strike, enabling it to survive a fight it may otherwise have lost
You cant use a single creature to convoke twice since convoke checks for untapped creatures when paying for the card's mana cost, not when generating that mana
Catching a ban to end Eldrazi Winter in Modern, the Eye restricts the cards you can play severely in exchange for an amazing mana advantage
The regular version is still a good deal at $4.99, but for an extra $0.50, why not treat yourself to the borderless full art version
Originally printed in the 2008 MTG set Eventide, Sapling of Colfenor is a Treefolk Shaman with an interesting effect
It provides a little ramp in the form of Treasure tokens, and allows you to sacrifice those Treasures to exile the top card from your library and play it that turn