Kjeldoran Frostbeast is a giant lurking ice-frost elemental bursting out of a frozen lake
Thankfully, other printings make it clear that its a Legendary Enchantment that exiles opponents creatures and brings them back under your control, with additional counters on them
This one gives us the much-needed haste along with our mana reduction, which Id almost be okay paying four mana for in the first place
It gets your dragons into play fast and even gives your deck a recursive angle that many dragon-themed decks are lacking
5 Best: Emry, Luker Of The Loch Emry, Luker of the Loch is a relatively low cost card at three mana that can be reduced even more, costing one less for each artifact you control
Tokens Last but not least, these are my favorite tokens for the Cube