mtg cards with mentor Silvergill Mentor, Lorwyn Eclipsed (ECL) Price History Prowess (Whenever you cast a noncreature spell Harsh Mentor : r/magicTCG

The power of Reflecting Pool really depends on your own land cards, but it can actually be very versatile in mana fixing

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This is great for players who want to buy specific cards, but it also means in-demand staples can become expensive

Some cards will make you a 'lil bit safer, like Sliver Hivelord, Darkheart Sliver + Hibernation Sliver, Sedge Sliver or Crypt Sliver, Diffusion Sliver, Ward Sliver, Root Sliver, Frenetic Sliver (in last case scenarios) , Crystalline Sliver, Pulmonic Sliver, Asceticism, Privileged Position and Steely Resolve

Every time you run through this combo you generate one extra mana

However, its still one of the best Green creatures in MTG, because it allows you to play cards again