The extra mana may be paid with Convoke because the total cost will be set after all cost reducing effects are taken to account
3-drawer storage solution sized to hold 1,000+ standard trading cards (500+ double-sleeved) Card-sized front display slot for labeling drawers Includes 9 dividers for enhanced in-drawer organization Snap-fit removable lid and drawers for easy access to cards Stackable and fits in most standard shelving systems The Best Budget MTG Card Organizer For the Magic player on a budget, I recommend the BCW 5000 Count Storage Box (with Lid)
The Hipster Dragon Highlander Calculator works by first considering what percentage of decks each card shows up in, then totting up the totals
Also currently costing $29.99, it ramps, it damages, and it draws cards
Sure, its powerful and will give you a lot of extra value, but Id much rather get five, six or even ten cards from this list before buying just it alone
Not having much of a reprint since, its crept up to $28