Well of Knowledge [Weatherlight]Set: Weatherlight Type: Artifact Rare Cost: {3} {2}: Draw a card. Any player may activate this ability but only during their draw step.

Set: Chronicles Type: Enchantment Rare Cost: {2}{R} Nonbasic lands are Mountains

that many plus one of each of those kinds of counters are put on that permanent instead

(Whenever you cast a spell

look at the top card of your library

Set: Magic Player Rewards 2008 Type: Sorcery Rare Cost: {U} Look at the top three cards of your library

or triggered ability

Upon such armor

(An exerted creature won't untap during your next untap step

If an effect causes you to discard a card

Set: Future Sight Type: Artifact Rare Cost: {3} Whenever you cast a spell

it gets +5/+5 and gains trample until end of turn

Left unchecked