Multani, Yavimayas Avatar and Slogurk, the Overslime already have trample and Titania, Voice of Gaea or Greensleeves, Maro-Sorcerer certainly wont mind their power and thoughness gaining yet another bonus when extra lands enter your battlefield
Clive, Ifrits Dominant(Front) andIfrit, Warden of Inferno(Back)by Kazuya Takahashi
These cards, among others, offer a range of options for various game situations, from early setup to late-game finishers
There is a downside to losing powerful staples by going from a five-color deck to two or three, but the commanders Ive selected as the Sliver trainers will show you how powerful Slivers can be, even in two colors
Or probably your deck minus one card, which includes a Force of Negation and a way to kill them on your next turn