These are among the best red draw spells you can copy, plus they synergize with tons of Treasure and more general artifact cards, and you can hold them up alongside interaction
Currently sitting at around $14 I think that those could easily see a double up to around $30, and if youre feeling a little splashier then I feel fairly confident calling the FEAs to go from $45 to $60+ as well (although theres less meat on those bones than Id really like, so the others are better specs for now)
I can see this card going absolutely insane in decks with a lot of enters-the-battlefield triggers based around creatures
He loves the collectible nature of the game, but never wants to play it
But, mechanically speaking, its pretty good
(Whenever a Sliver attacks and isn't blocked, it gets +1/+0 until end of turn.) Fungus Sliver Rarity: Rare TYPE: Creature SUBTYPE: Fungus Sliver CMC: 4 Mana cost: USD: $0.78 EUR: 0.61 TIX: 0.00 EDHREC RANK: 13561 (2/2) All Sliver creatures have "Whenever this creature is dealt damage, put a +1/+1 counter on it." (It must survive the damage to get the counter.) Fury Sliver Rarity: Uncommon TYPE: Creature SUBTYPE: Sliver CMC: 6 Mana cost: USD: $0.76 EUR: 0.46 TIX: 0.00 EDHREC RANK: 10061 (3/3) All Sliver creatures have double strike